Different parts of the country are seeing different levels of COVID-19 activity. The United States nationally is in the initiation phase of the pandemic. States in which community spread is occurring are in the acceleration phase.
The duration and severity of each pandemic phase can vary depending on the characteristics of the virus and the public health response.
CDC and state and local public health laboratories are testing for the virus that causes COVID-19.
View CDC’s Public Health Laboratory Testing map. All 50 states have reported cases of COVID-19 to CDC.