Filters

Name Pathogen(s)/
Syndrome(s)		 Geographic Coverage Geographic Levels Temporal Scope Start Temporal Scope End Temporal Granularity Reporting Cadence Reporting Lag(nominal) Revision Cadence Population Population Stratifiers Surveillance Categories Original Data Provider Pre-processing Censoring Missingness DUA required? Data Use Terms Documentation
CDC Website Hits ILI United States National, U.S. HHS Region, U.S. Census Region, State/ADM 1 2013w02 2020w03 Weekly Weekly 2 days None All (ie all groups) N/A Symptomatic US DHHS/CDC None Yes Permission by CDC flu division https://cmu-delphi.github.io/delphi-epidata/api/cdc.html
Change Healthcare COVID-Confirmed Doctor Visits COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-02-01 2024-02-19 Daily Daily 4-5 days Daily All None Outpatient / ED Change Healthcare Time-smoothing using a Gaussian linear smoother by Delphi. Day-of-week adjustment by Delphi. Geo-aggregation by Delphi. Discarded if over a given 7-day period an estimate is computed with 100 or fewer observations Data is available for nearly all (99%) of counties. Data is available for all states and some territories. No CC BY-NC https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/chng.html
Change Healthcare COVID-Confirmed Hospital Admissions COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-02-01 2024-02-19 Daily Daily 4-5 days Daily All None Hospitalized Change Healthcare Time-smoothing using a Gaussian linear smoother by Delphi. Day-of-week adjustment by Delphi. Geo-aggregation by Delphi. Discarded if over a given 7-day period an estimate is computed with 100 or fewer observations Data is available for nearly all (99%) of counties. Data is available for all states and some territories. No CC BY-NC https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/chng.html
Change Healthcare COVID-Related Doctor Visits COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-02-01 2024-02-19 Daily Daily 4-5 days Daily All None Outpatient / ED Change Healthcare Time-smoothing using a Gaussian linear smoother by Delphi. Day-of-week adjustment by Delphi. Geo-aggregation by Delphi. Discarded if over a given 7-day period an estimate is computed with 100 or fewer observations Data is available for nearly all (99%) of counties. Data is available for all states and some territories. No CC BY-NC https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/chng.html
Change Healthcare Influenza-Confirmed Doctor Visits influenza United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-02-01 2024-02-19 Daily Daily 4-5 days Daily All None Outpatient / ED Change Healthcare Time-smoothing using a Gaussian linear smoother by Delphi. Day-of-week adjustment by Delphi. Geo-aggregation by Delphi. Discarded if over a given 7-day period an estimate is computed with 100 or fewer observations Data is available for nearly all (99%) of counties. Data is available for all states and some territories. No CC BY-NC https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/chng.html
Community Profile Report Confirmed COVID-19 Hospital Admissions COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Metropolitan Statistical Area (MSA) 2020-12-16 2023-02-22 Daily Daily 3-9 days None All None Hospitalized US WH DSEW-CPR 7day averaging by Delphi. Geo-aggregation by Delphi. None Data is available for all counties and some territorial county equivalents. Data is available for all states and some territories. No Publicly Accessible US Government (https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/dsew-cpr.html
Community Profile Report COVID-19 Booster Doses COVID-19 United States National, U.S. HHS Region, State/ADM 1 2021-11-01 2023-02-22 Daily Daily 3-9 days None All None Entire Population US WH DSEW-CPR Time-smoothing by Delphi. Geo-aggregation by Delphi. None Data is available for all states and some territories. No Publicly Accessible US Government (https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/dsew-cpr.html
Community Profile Report COVID-19 Booster Recipients COVID-19 United States National, U.S. HHS Region, State/ADM 1 2021-11-01 2023-02-22 Daily Daily 3-9 days None All None Entire Population US WH DSEW-CPR 7day averaging by Delphi. Geo-aggregation by Delphi. None Data is available for all states and some territories. No Publicly Accessible US Government (https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/dsew-cpr.html
Community Profile Report COVID-19 Test Positivity COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Metropolitan Statistical Area (MSA) 2021-11-01 2023-02-22 Daily Daily 3-9 days Almost daily All None Entire Population US WH DSEW-CPR Time-smoothing by Delphi. Geo-aggregation by Delphi. None Data is available for all states and some territories. No Publicly Accessible US Government (https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/dsew-cpr.html
Community Profile Report COVID-19 Vaccine Doses COVID-19 United States National, U.S. HHS Region, State/ADM 1 2021-05-02 2023-02-22 Daily Daily 3-9 days None All None Entire Population US WH DSEW-CPR 7day averaging by Delphi. Geo-aggregation by Delphi. None Data is available for all states and some territories. No Publicly Accessible US Government (https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/dsew-cpr.html
Community Profile Report COVID-19 Vaccine Recipients COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Metropolitan Statistical Area (MSA) 2021-01-15 2023-02-22 Daily Daily 3-9 days None All None Entire Population US WH DSEW-CPR 7day averaging by Delphi. Geo-aggregation by Delphi. None Data is available for all counties and some territorial county equivalents. Data is available for all states and some territories. No Publicly Accessible US Government (https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/dsew-cpr.html
Covid Act Now COVID-19 PCR Test Positivity Rate COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-03-01 2021-12-02 Daily Daily 2-9 days Usually daily All None Case COVID Act Now Discarded if sample size (total tests performed) is 0 Data is available for nearly all (99%) of counties. A few counties, most notably in California, are not covered by this data source Data is available for all states. No CC BY-NC https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/covid-act-now.html
Covid Act Now COVID-19 PCR Tests COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-03-01 2021-12-02 Daily Daily 2-9 days Usually daily All None Case COVID Act Now Discarded if sample size (total tests performed) is 0 Data is available for nearly all (99%) of counties. A few counties, most notably in California, are not covered by this data source Data is available for all states. No CC BY-NC https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/covid-act-now.html
COVID-19 Burden Composite COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-04-06 2021-03-16 Daily Daily 1-3 days Almost daily All None Outpatient / ED Delphi Extensive processing, see documentation None. However underlying signals may perform their own censoring Data is available for about 80% of counties Data is available for all states and some territories. No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/indicator-combination.html
COVID-19 Hospital Admissions from Claims COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-02-01 Ongoing Daily Daily 3-4 days Daily All None Hospitalized Health system partners time-smoothing by Delphi, with and without day-of-week adjustment by Delphi Discarded if over a given 7-day period an estimate is computed with 500 or fewer observations Data is available for about 35% of counties Data is available for all states. No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/hospital-admissions.html
COVID-19 Hospital Admissions from claims + EMR COVID-19 United States State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-02-01 2020-09-27 Daily Daily 3-4 days Daily All None Hospitalized Health system partners time-smoothing by Delphi, with and without day-of-week adjustment by Delphi Discarded if over a given 7-day period an estimate is computed with 500 or fewer observations Data is available for about 35% of counties Data is available for all states. No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/hospital-admissions.html
COVID-Related Doctor Visits COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-02-01 Ongoing Daily Daily 3-6 days Daily All None Outpatient / ED Health system partners Time-smoothing using a Gaussian linear smoother by Delphi. Day-of-week adjustment by Delphi. Geo-aggregation by Delphi. Discarded if over a given 7-day period an estimate is computed with 500 or fewer observations Data is available for about 80% of counties Data is available for all states and some territories. No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/doctor-visits.html
CTIS: Behavior Indicators COVID-19 United States National, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) Varies by indicator - 2020-2021 2022-06-25 Daily Daily 1 day Daily All None Entire Population Delphi via Facebook population weighting by Delphi, with and without 7 day rolling by Delphi Discarded if an estimate is based on fewer than 100 survey responses. Geographic coverage varies widely by signal, with anywhere from 0.4% to 25% of counties available and 15% to 100% of states. A handful of signals are available for 40-50% of counties, and all states and some territories. Signals based on questions that were asked to a subset of survey respondents are available for fewer locations. Availability declines over time as survey response rate decreases. A missing value indicates no valid data OR, for test positivity, that the value was censored due to small sample size (<= 5) No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/fb-survey.html
CTIS: Belief, Experience, and Information Indicators COVID-19 United States National, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) Varies by indicator - 2020-2021 2022-06-25 Daily Daily 1 day Daily All None Entire Population Delphi via Facebook population weighting by Delphi, with and without 7 day rolling by Delphi Discarded if an estimate is based on fewer than 100 survey responses. Geographic coverage varies widely by signal, with anywhere from 0.4% to 25% of counties available and 15% to 100% of states. A handful of signals are available for 40-50% of counties, and all states and some territories. Signals based on questions that were asked to a subset of survey respondents are available for fewer locations. Availability declines over time as survey response rate decreases. A missing value indicates no valid data OR, for test positivity, that the value was censored due to small sample size (<= 5) No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/fb-survey.html
CTIS: ILI and CLI Indicators COVID-19 United States National, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) Varies by indicator - 2020-2021 2022-06-25 Daily Daily 1 day Daily All None Symptomatic Delphi via Facebook population weighting by Delphi, with and without 7 day rolling by Delphi Discarded if an estimate is based on fewer than 100 survey responses. Geographic coverage varies widely by signal, with anywhere from 0.4% to 25% of counties available and 15% to 100% of states. A handful of signals are available for 40-50% of counties, and all states and some territories. Signals based on questions that were asked to a subset of survey respondents are available for fewer locations. Availability declines over time as survey response rate decreases. A missing value indicates no valid data OR, for test positivity, that the value was censored due to small sample size (<= 5) No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/fb-survey.html
CTIS: Mental Health Indicators pathogen independent United States National, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) Varies by indicator - 2020-2021 2022-06-25 Daily Daily 1 day Daily All None Entire Population Delphi via Facebook population weighting by Delphi, with and without 7 day rolling by Delphi Discarded if an estimate is based on fewer than 100 survey responses. Geographic coverage varies widely by signal, with anywhere from 0.4% to 25% of counties available and 15% to 100% of states. A handful of signals are available for 40-50% of counties, and all states and some territories. Signals based on questions that were asked to a subset of survey respondents are available for fewer locations. Availability declines over time as survey response rate decreases. A missing value indicates no valid data OR, for test positivity, that the value was censored due to small sample size (<= 5) No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/fb-survey.html
CTIS: Testing Indicators COVID-19 United States National, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) Varies by indicator - 2020-2021 2022-06-25 Daily Daily 1 day Daily All None Tested Delphi via Facebook population weighting by Delphi, with and without 7 day rolling by Delphi Discarded if an estimate is based on fewer than 100 survey responses. Geographic coverage varies widely by signal, with anywhere from 0.4% to 25% of counties available and 15% to 100% of states. A handful of signals are available for 40-50% of counties, and all states and some territories. Signals based on questions that were asked to a subset of survey respondents are available for fewer locations. Availability declines over time as survey response rate decreases. A missing value indicates no valid data OR, for test positivity, that the value was censored due to small sample size (<= 5) No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/fb-survey.html
CTIS: Vaccination Indicators COVID-19 United States National, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) Varies by indicator - 2020-2021 2022-06-25 Daily Daily 1 day Daily All None Vaccinated Delphi via Facebook population weighting by Delphi, with and without 7 day rolling by Delphi Discarded if an estimate is based on fewer than 100 survey responses. Geographic coverage varies widely by signal, with anywhere from 0.4% to 25% of counties available and 15% to 100% of states. A handful of signals are available for 40-50% of counties, and all states and some territories. Signals based on questions that were asked to a subset of survey respondents are available for fewer locations. Availability declines over time as survey response rate decreases. A missing value indicates no valid data OR, for test positivity, that the value was censored due to small sample size (<= 5) No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/fb-survey.html
Delphi Dengue Nowcasts dengue North and South America National 2014w09 2020w32 Weekly unknown unknown Weekly All None Case Delphi Sensor fusion model No CC BY https://cmu-delphi.github.io/delphi-epidata/api/dengue_nowcast.html
Delphi Dengue Sensors dengue North and South America National 2014w04 2020w32 Weekly unknown unknown Weekly All None Case Delphi Sensors are fit to estimate a target surveillance stream from individual data sources or models Sensor-dependent Sensor-dependent https://cmu-delphi.github.io/delphi-epidata/api/dengue_sensors.html
Delphi ILI Sensors ILI United States National, U.S. HHS Region, U.S. Census Region, State/ADM 1 2010w40 2022w36 Weekly unknown -1 to 1 day unknown All None Outpatient / ED Delphi Sensors are fit to estimate the target (%wILI) from individual data sources or models. Sensor-dependent Sensor-dependent David Farrow's PhD thesis (https://www.cmu.edu/delphi-web/publications/dfarrow-thesis.pdf), section 4.3
Delphi ILI-Nearby Nowcasts ILI United States National, U.S. HHS Region, U.S. Census Region, State/ADM 1 2010w45 2022w36 Weekly Weekly {-1, 1} day Weekly (x2) All None Outpatient / ED Delphi Sensor fusion model No CC BY https://cmu-delphi.github.io/delphi-epidata/api/nowcast.html
Delphi ILINet Forecasts ILI United States National, U.S. HHS Region, State/ADM 1 2014w41 2020w19 Weekly Weekly Typically {2, -5, -12, -19} days Weekly All None Outpatient / ED Delphi Time series model No CC BY https://cmu-delphi.github.io/delphi-epidata/api/delphi.html
European ILI ILI Europe and Central Asia National 2018w40 2020w12 Weekly unknown unknown unknown All None Outpatient / ED European CDC No This was scraped from a publicly-accessible website, but no explicit license terms were found. https://cmu-delphi.github.io/delphi-epidata/api/ecdc_ili.html
FluSurv-NET influenza hospitalization rates influenza United States FluSurv-Net site (see documentation) 2003w40 2020w17 Weekly Weekly during flu season (w40-w20) 6 days Mostly weekly All (ie all groups) All; ages 0-4, 5-17, 18-49, 50-64, 65+ Hospitalized US DHHS/CDC FluSurv public reporting starts when season-cumulative admissions in that jurisdiction reach a certain threshold. Typically available for most of the influenza season (w40-w20) No [Publicly Accessible US Government](https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/flusurv.html
Google Flu Trends (GFT) ILI United States National, U.S. HHS Region, State/ADM 1, Municipality/ADM 3 2003w40 2015w32 Weekly unknown 1 day unknown All None Symptomatic Entire Population Google Normalization Unavailable when daily volume in a region does not meet quality or privacy thresholds, as set by Google. Google also uses differential privacy, which adds artificial noise to the incoming data No Google Terms of Service (https://policies.google.com/terms) https://cmu-delphi.github.io/delphi-epidata/api/gft.html
Google Health Trends (GHT) COVID-Related Searches COVID-19 United States State/ADM 1, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA), Designated Market Area (DMA) 2020-02-01 2021-03-04 Daily Daily 4-5 days None All None Symptomatic Google with and without time-smoothed by Delphi Reported as 0 query when search volume is below a certain threshold Data is available for all states. No Google Terms of Service (https://policies.google.com/terms) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/ght.html
Google Health Trends (GHT) ILI-Related Searches ILI North and South America National, State/ADM 1 1993w01 2022w36 Weekly unknown 1 day unknown All None Symptomatic Entire Population Google Normalization Unavailable when daily volume in a region does not meet quality or privacy thresholds, as set by Google. Google also uses differential privacy, which adds artificial noise to the incoming data Yes Google Terms of Service (https://policies.google.com/terms) https://cmu-delphi.github.io/delphi-epidata/api/ght.html
Google Symptom Surveys COVID-Like Illness COVID-19 United States State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-04-11 2020-05-14 Daily Daily 1-2 days Daily for 3 days but with minimal changes. All None Symptomatic Delphi via Google with and without time-smoothed by Delphi Discarded when an estimate is based on fewer than 100 survey responses Data is available for about 20% of counties Data is available for all states. No Google Terms of Service (https://policies.google.com/terms) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/google-survey.html
Google Symptoms Searches H5N1 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-02-13 with some variation by geography Ongoing Daily Daily 4-7 days None All None Symptomatic Google with and without 7day smoothed by Delphi Unavailable when daily volume in a region does not meet quality or privacy thresholds, as set by Google. Google also uses differential privacy, which adds artificial noise to the incoming data Data is available for about 3-4% of counties. Data is available for about 85% of states. Signals associated with rarer symptoms (e.g. ageusia) will tend to have fewer locations available, due to upstream privacy censoring. Locations with lower populations will tend to be less available for the same reason No Google Terms of Service (https://policies.google.com/terms) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/google-symptoms.html
HealthTweets ILI Twitter Activity influenza United States National, U.S. HHS Region, U.S. Census Region, State/ADM 1 2011-12-01 2020-12-07 Daily, Weekly unknown unknown unknown All None Symptomatic Twitter No publicly accessible. Please cite: Mark Dredze, Renyuan Cheng, Michael J Paul, David A Broniatowski. HealthTweets.org: A Platform for Public Health Surveillance using Twitter. AAAI Workshop on the World Wide Web and Public Health Intelligence, 2014. https://cmu-delphi.github.io/delphi-epidata/api/twitter.html
HHS Confirmed COVID-19 Admissions COVID-19 United States National, U.S. HHS Region, State/ADM 1 2019-12-31 2024-04-30 Daily Weekly 5-11 days Often twice a week, sometimes almost daily All (ie all groups) N/A Hospitalized US DHHS None Data is available for all states and some territories. No Publicly Accessible US Government data (https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/hhs.html
HHS Confirmed Influenza Admissions influenza United States National, U.S. HHS Region, State/ADM 1 2019-12-31 2024-04-30 Daily Weekly 5-11 days Often twice a week, sometimes almost daily All (ie all groups) N/A Hospitalized US DHHS None Data is available for all states and some territories. No Publicly Accessible US Government data (https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/hhs.html
HHS COVID-19 Reported Patient Impact and Hospital Capacity by Facility COVID-19 United States Hospital ('Facility') 2019w52 2024w08 Weekly up to twice a week 11-19 days Often twice a week, sometimes almost daily All (ie all groups) All; adult, pediatric; ages 18-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80+ Hospitalized US DHHS None by Delphi None Data is available for all states and some territories. No [Publicly Accessible US Government data](https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covid_hosp_facility.html
HHS COVID-19 Reported Patient Impact and Hospital Capacity by State COVID-19 United States State/ADM 1 2020-01-01 2024-04-27 Daily usually twice a week 5-11 days Often twice a week, sometimes almost daily All (ie all groups) All; adult, pediatric; ages 18-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80+ Hospitalized US DHHS None by Delphi None Data is available for all states and some territories. No [Publicly Accessible US Government data](https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covid_hosp.html
HHS Suspected or Confirmed COVID-19 Admissions COVID-19 United States National, U.S. HHS Region, State/ADM 1 2019-12-31 2024-04-30 Daily Weekly 5-11 days Often twice a week, sometimes almost daily All (ie all groups) N/A Hospitalized US DHHS None Data is available for all states and some territories. No Publicly Accessible US Government data (https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/hhs.html
ILINet ILI United States National, U.S. HHS Region, U.S. Census Region, State/ADM 1 1997w40 Ongoing Weekly Weekly during flu season (w40-w20) 5 days weekly All (ie all groups) All; ages 0-4, 5-24, 25-64, 25-49, 50-64, 65+ Outpatient / ED US DHHS/CDC Age breakdown is available only for the numerator (number of ILI-related office visits) No [Publicly Accessible US Government](https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/fluview.html
Influenza-Related Wikipedia Access ILI Worldwide N/A 2007w50 2021w11 Hourly, Daily, Weekly unknown unknown unknown All None Symptomatic Wikipedia No CC BY-SA https://cmu-delphi.github.io/delphi-epidata/api/wiki.html
JHU Confirmed COVID-19 Cases COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-01-22 with some variation by geo 2023-03-09 Daily Daily 1 day 2-3 times weekly All None Case JHU CSSE incidence, 7day avg, and rates calculation by Delphi None Data is available for all counties and some territorial county equivalents. Data is available for all states and some territories. No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/jhu-csse.html
JHU Confirmed COVID-19 Deaths COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-01-22 with some variation by geo 2023-03-09 Daily Daily 1 day 2-3 times weekly All None Deceased JHU CSSE incidence, 7day avg, and rates calculation by Delphi None Data is available for all counties and some territorial county equivalents. Data is available for all states and some territories. No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/jhu-csse.html
Korean ILI ILI South Korea National 2004w36 2020w44 Weekly Weekly 3 days None All None Outpatient / ED Korean CDC No This was scraped from a publicly-accessible government website, but no explicit license terms were found. https://cmu-delphi.github.io/delphi-epidata/api/kcdc_ili.html
NCHS All Cause Deaths pathogen independent United States National, State/ADM 1 2020w05 with some variation by geography Ongoing Weekly Weekly 11-17 days Weekly All None Deceased US DHHS/CDC/NCHS calculation of population rates by Delphi. Unavailable by NCHS when counts are between 1 and 9, and for weeks where the counts are less than 50% of the expected number, since "these provisional counts are highly incomplete and potentially misleading" Data is available for all states and some territories. No NCHS Data Use Agreement (https://www.cdc.gov/nchs/data_access/restrictions.htm) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nchs-mortality.html
NCHS Confirmed or Presumed COVID-19 Deaths COVID-19 United States National, State/ADM 1 2020w05 with some variation by geography Ongoing Weekly Weekly 11-17 days Weekly All None Deceased US DHHS/CDC/NCHS calculation of population rates by Delphi. Unavailable by NCHS when counts are between 1 and 9, and for weeks where the counts are less than 50% of the expected number, since "these provisional counts are highly incomplete and potentially misleading" Data is available for all states and some territories. No NCHS Data Use Agreement (https://www.cdc.gov/nchs/data_access/restrictions.htm) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nchs-mortality.html
NCHS Influenza Deaths influenza United States National, State/ADM 1 2020w05 with some variation by geography Ongoing Weekly Weekly 11-17 days Weekly All None Deceased US DHHS/CDC/NCHS calculation of population rates by Delphi. Unavailable by NCHS when counts are between 1 and 9, and for weeks where the counts are less than 50% of the expected number, since "these provisional counts are highly incomplete and potentially misleading" Data is available for all states and some territories. No NCHS Data Use Agreement (https://www.cdc.gov/nchs/data_access/restrictions.htm) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nchs-mortality.html
NCHS Percentage of Expected Deaths pathogen independent United States National, State/ADM 1 2020w05 with some variation by geography Ongoing Weekly Weekly 11-17 days Weekly All None Deceased US DHHS/CDC/NCHS None Unavailable by NCHS when counts are between 1 and 9, and for weeks where the counts are less than 50% of the expected number, since "these provisional counts are highly incomplete and potentially misleading" Data is available for all states and some territories. No NCHS Data Use Agreement (https://www.cdc.gov/nchs/data_access/restrictions.htm) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nchs-mortality.html
NCHS Pneumonia and COVID-19 excl. Influenza Deaths Pneumonia United States National, State/ADM 1 2020w05 with some variation by geography Ongoing Weekly Weekly 11-17 days Weekly All None Deceased US DHHS/CDC/NCHS calculation of population rates by Delphi. Unavailable by NCHS when counts are between 1 and 9, and for weeks where the counts are less than 50% of the expected number, since "these provisional counts are highly incomplete and potentially misleading" Data is available for all states and some territories. No NCHS Data Use Agreement (https://www.cdc.gov/nchs/data_access/restrictions.htm) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nchs-mortality.html
NCHS Pneumonia excl. Influenza Deaths Pneumonia United States National, State/ADM 1 2020w05 with some variation by geography Ongoing Weekly Weekly 11-17 days Weekly All None Deceased US DHHS/CDC/NCHS calculation of population rates by Delphi. Unavailable by NCHS when counts are between 1 and 9, and for weeks where the counts are less than 50% of the expected number, since "these provisional counts are highly incomplete and potentially misleading" Data is available for all states and some territories. No NCHS Data Use Agreement (https://www.cdc.gov/nchs/data_access/restrictions.htm) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nchs-mortality.html
NCHS Pneumonia, COVID-19 or Influenza Deaths influenza United States National, State/ADM 1 2020w05 with some variation by geography Ongoing Weekly Weekly 11-17 days Weekly All None Deceased US DHHS/CDC/NCHS calculation of population rates by Delphi. Unavailable by NCHS when counts are between 1 and 9, and for weeks where the counts are less than 50% of the expected number, since "these provisional counts are highly incomplete and potentially misleading" Data is available for all states and some territories. No NCHS Data Use Agreement (https://www.cdc.gov/nchs/data_access/restrictions.htm) https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nchs-mortality.html
NHSN COVID-19 hospital admissions COVID-19 United States N/A 2020-08-08 Ongoing Weekly Weekly 4-7 days All none Hospitalized US DHHS/CDC/NHSN No Public Domain U.S. Government, https://www.usa.gov/government-works https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nhsn.html
NHSN flu hospital admissions influenza United States N/A 2020-08-08 Ongoing Weekly Weekly 4-7 days All none Hospitalized US DHHS/CDC/NHSN No Public Domain U.S. Government, https://www.usa.gov/government-works https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nhsn.html
NHSN RSV hospital admissions RSV United States N/A 2020-08-08 Ongoing Weekly Weekly 4-7 days All none Hospitalized US DHHS/CDC/NHSN No Public Domain U.S. Government, https://www.usa.gov/government-works https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nhsn.html
NoroSTAT norovirus outbreaks Norovirus United States National 2012w31 2020w30 Weekly Monthly 3-8 weeks None All (ie all groups) N/A Case US DHHS/CDC No [Publicly Accessible US Government](https://www.usa.gov/government-works) https://cmu-delphi.github.io/delphi-epidata/api/norostat.html
NSSP COVID-19 Emergency Department Visits COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2022-10-01 Ongoing Weekly Weekly 7 days Weekly All None Outpatient / ED US DHSS/CDC/NSSP 3-week smoothing by NSSP. Geo-aggregation to hrr, msa and hhs-region by Delphi. Geo-aggregation to state and nation by NSSP. None, though a number of states do not share county level data for unknown reasons Data is available for all states except SD and MO, and some territories. Many states do not have county-level data. As of May 2024, NSSP received data from 78% of US EDs. No Public Domain U.S. Government, https://www.usa.gov/government-works https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nssp.html
NSSP Emergency Department Visits for COVID-19, Influenza, and RSV Combined RSV United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2022-10-01 Ongoing Weekly Weekly 7 days Weekly All None Outpatient / ED US DHSS/CDC/NSSP 3-week smoothing by NSSP. Geo-aggregation to hrr, msa and hhs-region by Delphi. Geo-aggregation to state and nation by NSSP. None, though a number of states do not share county level data for unknown reasons Data is available for all states and some territories. Many states do not have county-level data. As of May 2024, NSSP received data from 78% of US EDs. No Public Domain U.S. Government, https://www.usa.gov/government-works https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nssp.html
NSSP Influenza Emergency Department Visits influenza United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2022-10-01 Ongoing Weekly Weekly 7 days Weekly All None Outpatient / ED US DHSS/CDC/NSSP 3-week smoothing by NSSP. Geo-aggregation to hrr, msa and hhs-region by Delphi. Geo-aggregation to state and nation by NSSP. None, though a number of states do not share county level data for unknown reasons Data is available for all states and some territories. Many states do not have county-level data. As of May 2024, NSSP received data from 78% of US EDs. No Public Domain U.S. Government, https://www.usa.gov/government-works https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nssp.html
NSSP RSV Emergency Department Visits RSV United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2022-10-01 Ongoing Weekly Weekly 7 days Weekly All None Outpatient / ED US DHSS/CDC/NSSP 3-week smoothing by NSSP. Geo-aggregation to hrr, msa and hhs-region by Delphi. Geo-aggregation to state and nation by NSSP. None, though a number of states do not share county level data for unknown reasons Data is available for all states and some territories. Many states do not have county-level data. As of May 2024, NSSP received data from 78% of US EDs. No Public Domain U.S. Government, https://www.usa.gov/government-works https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/nssp.html
PAHO Dengue dengue North and South America National 2014w01 2020w31 Weekly Weekly 6-7 days minimum, varies across jurisdictions and time None All None Case PAHO No This was scraped from a publicly-accessible website, but no explicit license terms were found. https://cmu-delphi.github.io/delphi-epidata/api/paho_dengue.html
Quidel influenza lab tests (early pandemic period) influenza United States State/ADM 1, Metropolitan Statistical Area (MSA) 2020-01-31 2020-05-01 Daily Daily 3-11 days Mostly daily All None Case Quidel Corp. With and without temporal smoothing by Delphi. Geo-aggregation by Delphi. Not reported if based on fewer than 10 tests Yes Permission by QuidelOrtho https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/quidel-flu.html
Quidel influenza lab tests (pre-pandemic) influenza United States U.S. HHS Region 2015w35 2020w15 Weekly Weekly 1-2 days? unknown All None Case Quidel Corp. Yes Permission by QuidelOrtho https://cmu-delphi.github.io/delphi-epidata/api/quidel.html
QuidelOrtho COVID-19 lab tests COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-05-26 Ongoing Daily Daily 5-7 days Daily All All; ages 0-4, 5-17, 0-17, 18-49, 50-64, 65+ Case QuidelOrtho Corp. With and without temporal and geographic smoothing by Delphi. Geo-aggregation by Delphi. Not reported if based on fewer than 30 tests. If total number of tests `n` was between 30 and 50, `50 - n` fake samples equal to the state mean were included in the estimate. Yes Permission by QuidelOrtho https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/quidel.html
Safegraph Home Mobility pathogen independent United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2019-01-01 2021-04-16 Daily Daily 3 days Annually All None Entire Population Safegraph Census block aggregation by Delphi. Raw and 7-day averaging by Delphi. Geo-aggregation by Delphi. None. However, Safegraph uses differential privacy, which adds artificial noise to the incoming data. See https://docs.safegraph.com/docs/social-distancing-metrics for details Data is available for all counties and some territorial county equivalents. Data is available for all states and some territories. No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/safegraph.html
Safegraph POI Mobility pathogen independent United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2019-01-01 2022-05-01 Daily Weekly 3-11 days Annually All None Entire Population Safegraph POI aggregation by Delphi. Raw and 7-day averaging by Delphi. Geo-aggregation by Delphi. Population rates by Delphi. None. However, Safegraph uses differential privacy, which adds artificial noise to the incoming data. See https://docs.safegraph.com/docs/social-distancing-metrics for details Data is available for all counties and some territorial county equivalents. Data is available for all states and some territories. No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/safegraph.html
Taiwanese dengue cases dengue Taiwan National, Other Subnational Region 2003w01 2018w10 Weekly unknown unknown unknown All None Case Taiwan CDC No https://data.gov.tw/license https://cmu-delphi.github.io/delphi-epidata/api/nidss_dengue.html
Taiwanese ILI ILI Taiwan National, Other Subnational Region 2008w14 2018w10 Weekly Weekly 2-3 days Mostly weekly All None Outpatient / ED Taiwan CDC No https://data.gov.tw/license https://cmu-delphi.github.io/delphi-epidata/api/nidss_flu.html
USA Facts Confirmed COVID-19 Cases COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-01-25 2023-01-02 Daily Weekly 2-8 days Almost daily All None Case USA Facts incidence, 7day avg, and rates calculation by Delphi None Data is available for all counties and some territorial county equivalents. Data is available for all states. No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/usa-facts.html
USA Facts Confirmed COVID-19 Deaths COVID-19 United States National, U.S. HHS Region, State/ADM 1, County/ADM 2, Hospital Referral Region (HRR), Metropolitan Statistical Area (MSA) 2020-01-25 2023-01-02 Daily Weekly 2-8 days Almost daily All None Deceased USA Facts incidence, 7day avg, and rates calculation by Delphi None Data is available for all counties and some territorial county equivalents. Data is available for all states. No CC BY https://cmu-delphi.github.io/delphi-epidata/api/covidcast-signals/usa-facts.html