RSV is usually contagious for three to eight days. A patient also may be contagious a day or two before experiencing symptoms ...

Flu takes one to four days to incubate in your system after you come into contact with the virus. You have the potential to ...

People who contract the flu are most contagious during the first 3 days of illness, according to the CDC. Those with weakened immune systems and young children may be contagious for longer periods ...

People with flu are most contagious during the first three days of their illness. Some people, including young children and people with weakened immune systems, may be contagious for longer ...

People with the flu are generally contagious for three to seven days after the onset of symptoms. However, children and those with weakened immune systems can remain contagious for several weeks.

Pregnant women People who contract the flu are most contagious during the first 3 days of illness, according to the CDC. Those with weakened immune systems and young children may be contagious for ...