Respiratory syncytial virus (RSV) is a virus that causes infections in the lungs and respiratory tract. It can infect people of all ages, but premature babies, infants and adults with heart or lung problems, or babies and adults with a weak immune system may get severe infection.
RSV is contagious and spreads very fast. The virus can enter the body through the eyes, nose or mouth and spread through two main ways—the air on infected respiratory droplets and direct contact.
If an adult gets infected, he tends to be most contagious in the first few days.
Keywords: rsv contagious adults