Here's the latest CDC guidelines.
https://www.msn.com/en-us/health/health ... li=BBnbcA1
"Reinfection with SARS-CoV-2 has not yet been definitively confirmed in any recovered persons to date."
From what I gather from the article, most people with mild to moderate cases are not contagious after 10 days. People with severe cases can be contagious up to 20 days and can shed, but not infect, the RNA for up to 3 months. Is that what you get out of the information as well?