How long you're infectious after a viral infection depends on the virus that caused
the infection. ... Tonsillitis itself isn't contagious but the viruses that cause it are.
Jul 30, 2015 ... The flu is a viral infection that targets your head and chest. You'll have a runny or
stuffy ... For how long am I contagious? The flu is contagious a ...
With a virus, you're more likely to be contagious before any symptoms even
appear. By the time you're getting over the virus, you're probably safe.
Oct 8, 2014 ... The initial period before the symptoms of a viral infection appear is called the
incubation period. Whether the host is contagious depends on the virus. ... like
those from Nigeria where incubation was as long as 24 days.
A contagious virus generally attacks your body over 10 days. View our sample
timeline of the life of a virus for more info.
The viruses that cause the stomach flu (gastroenteritis) are very contagious. ...
that cause gastroenteritis are spread through close contact with infected people,
Sep 18, 2015 ... How long is a person with flu virus contagious? ... Unlike many other viral
respiratory infections, such as the common cold, the flu can cause ...
Jul 30, 2015 ... The common cold, also known as an upper respiratory infection (URI), can be
caused by any of more than 200 viruses. These viruses attack ...
Aug 4, 2015 ... Learn how cold and flu viruses spread, find out when to seek medical care for
influenza or a cold, and discover the contagious period for the flu and common
cold. ... These droplets contain the infectious viruses. Occasionally ...