Coronavirus (COVID-19) Data Sources


During the Novel Coronavirus (COVID-19) outbreak, TWC is providing this data as a service to our users. TWC has compiled data provided by multiple third party sources including the World Health Organization, the Centers for Disease Control and Prevention, state and local agencies and other public sources as outlined below. These sources update and report data on various regular and irregular schedules, so from time to time there may be discrepancies between data reported here and data reported by individual sources. TWC makes every effort to provide the most up-to-date and accurate data available and uses quality assurance procedures to minimize and correct errors. Please send any inquiries or feedback about the data presented here to covid19@weather.com.

All information in the COVID-19 Q&A with Watson chat-bot is provided for general information purposes only. The COVID-19 Q&A with Watson chat-bot relies upon publicly and freely available content from the CDC and WHO. All sourced responses include links to the original content. Efforts are made to keep all information current, but the CDC and WHO websites contain the most accurate and up-to-date information. The inclusion of any content or information in the COVID-19 Q&A with Watson chat-bot does not constitute its endorsement or recommendation by the U.S. Government, Department of Health and Human Services, Centers for Disease Control and Prevention, or the World Health Organization.


Global Organizations:

World Health Organization (WHO)

Centers for Disease Control and Prevention (CDC)


State Health Departments:

All state public health departments report coronavirus data for the counties within their respective states, with the exception of California. To get county-level coronavirus data within California, please refer to the California County Health Departments section below.


California County Health Departments: