About this data

Confirmed cases and deaths are counts of individuals whose coronavirus infections were confirmed by a molecular laboratory test. Governments often revise data or report a single-day large increase in cases or deaths from unspecified days without historical revisions, which can cause an irregular pattern in the daily reported figures. Confirmed case and death data are gathered by The New York Times, which sources its data from states, counties, and regional health departments.

About this data

The dew point temperature is the maximum temperature at which water droplets can condense and dew can begin to form. Temperature readings are from the Global Surface Summary of the Day provided by the National Centers for Environmental Information.

About this data

The air quality index (AQI) tells you how clean or polluted your outdoor air is, along with associated health effects that may be of concern. Visit AirNow for more information on how the AQI is calculated. Parts per billion, parts per million, and micrograms per cubic meter are units that express concentration of a particular pollutant in ambient air. Air quality data are provided by the US Environmental Protection Agency (EPA) Air Quality System.


Funding Source

The research has been funded by Tufts University and the Tufts Medical Center COVID-19 Seed Funding Program.

Data Collection

Technical Assistance