If you’ve tested positive for COVID-19, it’s important to understand how long you could be contagious to others. The CDC currently advises that most people are contagious for about 8 to 10 days after symptoms start, but this can vary based on the severity of the infection. Most people with mild symptoms are contagious from 2 days before symptoms appear and for up to 10 days after. During this time, it's crucial to isolate yourself from others to prevent spreading the virus to them. In addition, if you have a more severe case of COVID-19 or if you have a weakened immune system, you could remain contagious for up to 20 days. While you are contagious, it’s essential to follow the advice of your healthcare provider and continue to monitor your symptoms closely. The safest approach is to isolate yourself for at least 5 full days after symptoms begin, then wear a mask around others for the remaining 5 days, even if your symptoms are going away. If your fever persists, you need to stay in isolation until it goes away.