I know how that feels firsthand. After more than two years of evading COVID-19, I tested positive at home on arapid antigen testduring the summer of 2022. At first, the line was so faint that it didn't even show up in photos. Looking at the faint line, I wondered if I was just...
Yes. As rapid antigen COVID-19 tests measure the presence of viral proteins, even a faint line positive result indicates that SARS-CoV-2 has had an impact on your immune system. A false positive isn't as likely as a false negative result on a home test early in a person's infection,...