Learn about Alexandra Michelle: her birthday, what she did before fame, her family life, fun trivia facts, popularity rankings, and more. Fun facts: before fame, family life, popularity rankings, and more.
Viruses cause such respiratory infections as the common cold (rhinovirus), the flu (influenza), some pneumonias and bronchiolitis (respiratory syncytial virus, or RSV). It can be difficult to determine whether you have a viral or bacterial infection because the symptoms are often similar.
A cold can linger anywhere from a few days to a few weeks, although one week is typical. Viruses are the culprits behind both of these illnesses. âThere are more than 200 viruses that can cause cold-like symptoms,â says Campbell-Scherer. (The most widespread is the rhinovirus.) In contrast, there are just two influenza viruses, A and B, but they continually mutate, requiring the flu vaccine to be updated each year in order to protect against the latest strains.