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47 changes: 20 additions & 27 deletions docs/api/covidcast_signals.md
Original file line number Diff line number Diff line change
Expand Up @@ -8,47 +8,40 @@ has_children: true
# Delphi's COVID-19 Data Sources and Signals

Delphi's COVID-19 Surveillance Streams data includes the following data sources.
Data from these sources is expected to be updated daily. You can use the
[`covidcast_meta`](covidcast_meta.md) API endpoint to get summary information
Data from most of these sources is typically updated daily. You can use the
[`covidcast_meta`](covidcast_meta.md) endpoint to get summary information
about the ranges of the different attributes for the different data sources.

The API for retrieving data from these sources is described in the
[COVIDcast API endpoint documentation](covidcast.md). Changes and corrections to
data in this API are listed in the [API changelog](covidcast_changelog.md).
[COVIDcast endpoint documentation](covidcast.md). Changes and corrections to
data from this endpoint are listed in the [changelog](covidcast_changelog.md).

To obtain many of these signals and update them daily, Delphi has written
extensive software to obtain data from various sources, aggregate the data,
calculate statistical estimates, and format the data to be shared through the
COVIDcast API. This code is [open source and available on
GitHub](https://github.com/cmu-delphi/covidcast-indicators), and contributions
are welcome.
COVIDcast endpoint of the Delphi Epidata API. This code is
[open source and available on GitHub](https://github.com/cmu-delphi/covidcast-indicators),
and contributions are welcome.

## COVIDcast Map Signals
## COVIDcast Dashboard Signals

The following signals are currently displayed on [the public COVIDcast
map](https://delphi.cmu.edu/covidcast/) and available in its [data export
tool](https://delphi.cmu.edu/covidcast/export/):
dashboard](https://delphi.cmu.edu/covidcast/):

| Kind | Name | Source | Signal |
| ---- | ---- | ------ | ------ |
| Public Behavior | At Away Location 6hr+ | [`safegraph`](covidcast-signals/safegraph.md) | `full_time_work_prop_7dav` |
| Public Behavior | At Away Location 3-6hr | [`safegraph`](covidcast-signals/safegraph.md) | `part_time_work_prop_7dav` |
| Public Behavior | Bar Visits | [`safegraph`](covidcast-signals/safegraph.md) | `bars_visit_prop` |
| Public Behavior | Restaurant Visits | [`safegraph`](covidcast-signals/safegraph.md) | `restaurant_visit_prop` |
| Public Behavior | People Wearing Masks | [`fb-survey`](covidcast-signals/fb-survey.md) | `smoothed_wearing_mask_7d` |
| Public Behavior | Vaccine Acceptance | [`fb-survey`](covidcast-signals/fb-survey.md) | `smoothed_covid_vaccinated_or_accept` |
| Public Behavior | COVID Symptom Searches on Google | [`google-symptoms`](covidcast-signals/google-symptoms.md) | `sum_anosmia_ageusia_smoothed_search` |
| Public Behavior | People Wearing Masks | [`fb-survey`](covidcast-signals/fb-survey.md) | `smoothed_wwearing_mask_7d` |
| Public Behavior | Vaccine Acceptance | [`fb-survey`](covidcast-signals/fb-survey.md) | `smoothed_wcovid_vaccinated_appointment_or_accept` |
| Public Behavior | COVID Symptom Searches on Google | [`google-symptoms`](covidcast-signals/google-symptoms.md) | `sum_anosmia_ageusia_smoothed_search` |
| Early Indicators | COVID-Like Symptoms | [`fb-survey`](covidcast-signals/fb-survey.md) | `smoothed_wcli` |
| Early Indicators | COVID-Like Symptoms in Community | [`fb-survey`](covidcast-signals/fb-survey.md) | `smoothed_whh_cmnty_cli` |
| Early Indicators | COVID-Related Doctor Visits | [`doctor-visits`](covidcast-signals/doctor-visits.md) | `smoothed_adj_cli` |
| Early Indicators | COVID-Like Symptoms | [`fb-survey`](covidcast-signals/fb-survey.md) | `smoothed_cli` |
| Early Indicators | COVID-Like Symptoms in Community | [`fb-survey`](covidcast-signals/fb-survey.md) | `smoothed_hh_cmnty_cli` |
| Late Indicators | COVID Antigen Test Positivity (Quidel) | [`quidel`](covidcast-signals/quidel.md) | `covid_ag_smoothed_pct_positive` |
| Late Indicators | Claims-Based COVID Hospital Admissions | [`hospital-admissions`](covidcast-signals/hospital-admissions.md) | `smoothed_adj_covid19_from_claims` |
| Late Indicators | Cases | [`jhu-csse`](covidcast-signals/jhu-csse.md) | `confirmed_7dav_incidence_num` |
| Late Indicators | Cases per 100,000 People | [`jhu-csse`](covidcast-signals/jhu-csse.md) | `confirmed_7dav_incidence_prop` |
| Late Indicators | Deaths | [`jhu-csse`](covidcast-signals/jhu-csse.md) | `deaths_7dav_incidence_num` |
| Late Indicators | Deaths per 100,000 People | [`jhu-csse`](covidcast-signals/jhu-csse.md) | `deaths_7dav_incidence_prop` |
| Cases and Testing| COVID Antigen Test Positivity (Quidel) | [`quidel`](covidcast-signals/quidel.md) | `covid_ag_smoothed_pct_positive` |
| Cases and Testing| COVID Cases | [`jhu-csse`](covidcast-signals/jhu-csse.md) | `confirmed_7dav_incidence_prop` |
| Late Indicators | COVID Hospital Admissions | [`hhs`](covidcast-signals/hhs.md) | `confirmed_admissions_covid_1d_prop_7dav` |
| Late Indicators | Deaths | [`jhu-csse`](covidcast-signals/jhu-csse.md) | `deaths_7dav_incidence_prop` |

## All Available Sources and Signals

Beyond the signals available on the COVIDcast map, numerous other signals are
available directly through the API:
Beyond the signals available on the COVIDcast dashboard, numerous other signals are
available through our [data export tool](https://delphi.cmu.edu/covidcast/export/) or directly through the API: