Cách sử dụng
A virus is a small living thing that can make you sick. It can enter your body and cause infections or diseases like the flu or COVID-19. You can catch a virus from someone else who is infected with it, such as by shaking hands or breathing in their sneeze or cough. You may also get a virus from contaminated surfaces like doorknobs or countertops. It is important to wash your hands and practice good hygiene to prevent the spread of viruses. Vaccines are also available to protect against certain types of viruses.