How Long Is Someone Infectious With Covid. On average it takes about 5 days to develop symptoms. Given her test results how confident are you in the CDCs advice that people can stop self-isolating after being symptom free for 72 hours.
Adalja MD senior scholar at the Johns Hopkins Center for Health Security in Maryland tells Health that someone who has had COVID-19 stops being contagious. It is not possible to say exactly how long someone will be infectious. On the other hand research suggests that people who are infected with SARS-CoV-2 the virus that causes COVID-19 are at their most contagious in the 24 to 48 hours before they experience symptoms.
If youve been around someone with COVID-19 you may be contagious as early as two days after that exposure if you do become infected.
Recent research has shown that a person infected with COVID-19 may be able to spread the virus up to 72 hours before they begin to have any symptoms and up to 10 days after symptoms disappear. For how long is a person infectious. These results suggest that shedding may occur for longer than 2 weeks in some people with COVID-19. How long to self-isolate.
