This document outlines minimum requirements of laboratory testing for COVID-19 and link laboratory testing with surveillance and contact tracing to guide the outbreak response by national health authorities using a reduced number of tests performed. The strategies are organized according to stages of transmission: (1) No cases reported or observed (Stage 0); (2) Imported cases (Stage 1); (3) Localized community transmission (Stage 2); (4) Large-scale community transmission (Stage 3). For each stage, the recommended approaches indicate which testing strategy to prioritize when there are severe limitations on laboratory testing. The document is based on the current epidemiology of COVID-19 and available molecular testing methods.
laboratory, COVID-19, laboratory tests,