P H I G H T   C O V I D

Public Health Interventions aGainst Human-to-Human Transmission (PHIGHT) of COVID-19


On January 21, 2020 the first confirmed case of SARS-CoV-2 (COVID-19) was reported in the state of Washington.
Documented in the map below are the state level public health interventions implemented by state goverments to limit the transmission of COVID.

Each state was given a score based on the strength and amount of interventions currently in place.
The higher a score, the darker in color a state will appear, representing stringent interventions in place at that point in time. The green circles represent the number of new daily COVID cases per 500,000 people in each state.

The map plays through time from March to October so state actions in response to the current pandemic can be visualized. Click on a state to learn more as the map plays or go to our graphs page to explore different interventions through time!

These are the interventions that we included in the map:
* Stay at Home Orders   * Large Gathering Bans   * Non-Essential Business Closures   * Bar and Restaurant Limits

NPI Score for States Across the US

key for State time series map

Keep in mind that some states had more interventions at the county level than the state level, however, our map doesn't show county level data. South Dakota for example, implemented none of the state level interventions described above, however, it did have these at the county level.

Terms of Use: We are committed to sharing our data for educational use, however, we ask that you attribute our data and keep in mind that the PHIGHT COVID project, website and its contents herein, including all data, mapping, graphing and analysis are copyright 2020 Lakdawala Laboratory, all rights reserved. When linking to the website, attribute it as "PHIGHT COVID by the Lakdawala Lab at the University of Pittsburgh" at the url: .

The data set underlying our maps and graphs, provided on the Lakdawala Lab GitHub (url:
is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Copyright Lakdawala Laboratory 2020. Attribute the data to "PHIGHT COVID by the Lakdawala Lab at the University of Pittsburgh" and the url:

Creative Commons License