Council of State and Territorial Epidemiologists. (2020). Standardized Surveillance Case Definition and National Notification for 2019 Novel Coronavirus Disease (COVID-19). (Added 9/18/2020.)
Position statement Interim-20-ID-01 – approved in April 2020 - created a standardized case definition for COVID-19 and added it to the list of nationally notifiable conditions. This position statement, Interim-20-ID-02, supersedes Interim-20-ID-01 by clarifying criteria for case ascertainment and classification, updating probable case classifications, and adding suspect case classifications.