I saw there was some confusion here about how long a person infected with Covid-19 is still infectious.
Here are the CDC recommendations:
https://www.cdc.gov/coronavirus/2019-ncov/hcp/duration-isolation.htmlIf some are too lazy to read here's the summary:
Duration of isolation and precautions
For most persons with COVID-19 illness, isolation and precautions can generally be discontinued 10 days after symptom onset1 and resolution of fever for at least 24 hours, without the use of fever-reducing medications, and with improvement of other symptoms.
A limited number of persons with severe illness may produce replication-competent virus beyond 10 days that may warrant extending duration of isolation and precautions for up to 20 days after symptom onset; consider consultation with infection control experts.
For persons who never develop symptoms, isolation and other precautions can be discontinued 10 days after the date of their first positive RT-PCR test for SARS-CoV-2 RNA.
Currently in my hospital we give them 2 weeks in isolation for most cases, or 3 weeks for the severe cases (most that I see) even if they still are quite sick.
You can make your own math of when somebody got the first positive test/symptoms based on when they are declared noninfectious, if that's true of course