There’s also the factor that some people have a longer incubation period. Early on in the pandemic there were reports of some people having 21-27 day incubation

There’s also the factor that some people have a longer incubation period. Early on in the pandemic there were reports of some people having 21-27 day incubation periods before testing positive and getting sick. I think it’s less common now with delta and omicron but likely still possible in rare instances.