COVID-19, the disease caused by the coronavirus SARS-CoV-2, is generally considered to be most contagious during the early stages of infection, when the virus is being actively shed in the respiratory secretions of an infected person. However, the virus can also be transmitted by people who do not have symptoms or who have not yet developed symptoms, which is known as asymptomatic or pre-symptomatic transmission.
It is generally believed that people with COVID-19 are no longer contagious once they have recovered from the infection and are no longer experiencing symptoms. However, the length of time that a person is contagious can vary depending on a number of factors, such as the severity of their illness and the presence of underlying health conditions.
If you have been infected with COVID-19 and are no longer experiencing symptoms, it is generally safe to assume that you are no longer contagious. However, it is always a good idea to follow the guidance of public health authorities and your healthcare provider to ensure that you are taking the necessary precautions to protect yourself and others from infection. This may include wearing a mask and practicing physical distancing, even after you have recovered from the infection.