Fig. 1

The results of Lumira Ag testing, viral culture, and RT-PCR testing. Qualitative results for Lumira Ag testing and viral culture, and quantitative results for RT-PCR testing (Ct value) are shown. The relationships between the test results and the days after the onset of symptoms are shown. The results of Lumira Ag testing are shown as filled circles for positive results and empty circles for negative results. The viral culture results, representing infectiousness, are shown as red for positive and blue for negative. NEG, negative; POS, positive