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.
- Alabama Public Health
- Alaska Department of Health and Social Services
- Arizona Department of Health Services
- Arkansas Department of Health
- California Department of Public Health Note: California data includes cases from the Diamond Princess cruise ship
- Colorado Department of Public Health & Environment
- Connecticut State Government
- Delaware Health and Social Services
- Government of the District of Columbia
- Florida Department of Health
- Georgia Department of Public Health
- Hawaii Department of Health
- State of Idaho
- Illinois Department of Public Health
- Indiana State Department of Health
- Iowa Department of Public Health
- Kansas Department of Health and Environment
- Kentucky Cabinet for Health and Family Services
- Louisiana Department of Health
- Maine Center for Disease Control & Prevention
- Maryland Department of Health
- Commonwealth of Massachusetts
- State of Michigan
- Minnesota Department of Health
- Mississippi State Department of Health
- Missouri Department of Health & Senior Services
- Montana Department of Public Health and Human Services
- Nebraska Department of Health and Human Services
- Nevada Department of Health and Human Services
- New Hampshire Department of Health and Human Services
- New Jersey Department of Health
- New Mexico Department of Health
- New York State Department of Health
- New York City Department of Health
- North Carolina Department of Health and Human Services
- North Dakota State Government
- Ohio Department of Health
- Oklahoma State Department of Health
- Oregon Health Authority
- Pennsylvania Department of Health
- Rhode Island Department of Health
- South Carolina Department of Health and Environmental Control
- South Dakota Department of Health
- Tennessee Department of Health
- Texas Department of State Health Services
- Government of Utah
- Vermont Department of Health
- Virginia Department of Health
- Washington State Department of Health
- West Virginia Department of Health & Human Resources
- Wisconsin Department of Health Services
- Wyoming Department of Health
California County Health Departments:
- Alameda County
- Butte County
- Calaveras County
- Colusa County
- Contra Costa County
- Del Norte County
- El Dorado County
- Fresno County
- Glenn County
- Humboldt County
- Imperial County
- Inyo County
- Kern County
- Kings County
- Lake County
- Los Angeles
- Madera County
- Marin County
- Mariposa County
- Mendocino County
- Merced County
- Modoc County
- Mono County
- Napa County
- Nevada County
- Orange County
- Placer County
- Plumas County
- Riverside County
- Sacramento County
- San Benito County
- San Bernardino County
- San Diego County
- San Francisco County
- San Joaquin County
- San Luis Obispo County
- San Mateo County
- Santa Barbara County
- Santa Clara County
- Santa Cruz County
- Shasta County
- Sierra County
- Siskiyou County
- Solano County
- Sonoma County
- Tuolumne County
- Ventura County
- Yolo County