COVID-19 is a virus identified as the cause of an outbreak of respiratory illness first detected in Asia in late 2019 that has since spread globally into a pandemic. Symptoms of COVID-19 include fever, cough, and shortness of breath. While roughly 80% of cases report mild symptoms, some progress into severe pneumonia and multi-organ failure and can lead to death. On January 21, 2020, the first set of individuals in the United States tested positive for COVID-19.
We publish COVID-19 data daily, however the numbers reflect a situation that is constantly changing. As more information is known (e.g. home address/city/county of a person identified as a case, etc.), updates are made to the data on a daily basis.
As COVID-19 data move into our reporting system, it can take a few days to fully investigate and verify the information. We aim to provide accurate data based on what is known on a given day. This is why various totals (for example: city, zip code, and county case totals) may not always align.