Rapid influenza diagnostic tests (RIDTs) are antigen detection tests that detect influenza viral nucleoprotein antigen. The commercially available RIDTs discussed in this document can provide results within 30 minutes or less. Thus, results are available in a clinically relevant time period to infor

The Rapid Influenza Diagnostic Test (RIDT) uses the detection of influenza virus nucleoprotein antigens to determine whether a person is currently infected with influenza. Commercially available RIDTs provide results within 30 minutes. These results can be observed by color changes or other visual s

Swab test antigen: Thailand reports first case of Omicron XE strain infection. Americas: Brazil relaxes entry and epidemic prevention policiesAccording to data from the Brazilian Ministry of Health, as of the evening of April 3 local time.