You can spread COVID-19 to others starting a couple days before you have any symptoms, and even if you never have symptoms. If you spend time close to someone with COVID-19, you may have it too, but you may not know it. It is important to take the recommended steps to keep from spreading the virus to others, even if you have been vaccinated or have already had COVID-19.
After exposure to someone who has COVID-19
Wear a high quality and well-fitting mask for 10 full days