Fig. 4From: Urgent care study of the LumiraDx SARS-CoV-2 Ag Test for rapid diagnosis of COVID-19Distribution of days after symptom onset for patients testing negative with LumiraDx SARS-CoV-2 Ag Test and positive with a PCR-based method (n = 30). All patients were symptomatic and had an average number of days after symptom onset of 3.3 days. This population consisted of 13 males and 17 females and had an average age of 42.0 yearsBack to article page