Close to 1 in 5 past diagnoses of multisystem inflammatory syndrome in children would now not technically qualify as cases under an updated definition from the CDC, according to a study published Jan.

A systematic review and meta-analysis finds that the definition of severe acute respiratory infection (SARI) used by the ...

A National Academies of Sciences, Engineering, and Medicine committee is in the process of examining the working definition of Long COVID. Case definitions are sets of rules that allow patients, ...

The Tennessee Department of Health Thursday announced it is changing the definition of active COVID-19 cases. The change removed more than two-thirds of active cases reported in our region. The active ...

Please provide your email address to receive an email when new articles are posted on . The CDC and Council of State and Territorial Epidemiologists published a revised case definition of multisystem ...