Low Sensitivity of Rapid Antigen Tests to Detect Severe Acute Respiratory Syndrome Coronavirus 2 Infections Before and on the Day of Symptom Onset in Nursing Home Staff and Residents, Germany, January-March 2021
J Infect Dis. 2021 Dec 1;224(11):1987-1989.
doi: 10.1093/infdis/jiab528.