The query "how long after my" seems incomplete, but based on common related questions, here is relevant information often asked concerning how long after an event with COVID-19:
- How long after infection or symptoms does COVID-19 immunity last? The immune system "remembers" COVID-19 typically for months after recovery, with memory immune cells stable for at least 6 to 8 months. Immunity may begin to wane after 3 to 4 months, recommending vaccination 3-4 months after recovery to maximize protection.
- How long after COVID-19 infection will a person test negative? Viral RNA can sometimes be detected by PCR tests weeks or months after infection, but infectiousness usually ends earlier. People generally test negative on antigen tests after isolation of about 5 to 10 days, depending on symptoms.
- How long after COVID-19 infection is a person contagious? People are most contagious around symptom onset and generally stop being contagious around 9 days after symptoms start. Isolation is advised until symptoms improve and fever is absent for at least 24 hours.
If the initial query can be clarified (e.g., "How long after my COVID-19 infection will I be contagious?" or "How long after my vaccination will I be protected?"), more precise answers can be provided.
