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Apr 3, 2017 ... Am I Too Sick or Contagious to Go to Work? ... The flu is a viral infection caused by the influenza virus that targets your head and chest. You'll ...


How long you're infectious after a viral infection depends on the virus that caused the infection. Most viral infections are infectious before you start feeling unwell ...


As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between  ...


Apr 25, 2017 ... The Differences Between Bacteria and Viruses; Diagnosis of ... which are ways the immune system tries to rid the body of infectious organisms.


Infectious diseases are caused by microscopic germs (such as bacteria or viruses) that get into the body and cause problems. Some — but not all — infectious ...


Cold viruses in droplets are spread mainly hand to hand. These droplets contain the infectious viruses.


Oct 8, 2014 ... Whether or not an infected person is contagious (i.e. is shedding virus) during the incubation period depends on the virus. For example, Ebola ...


Because colds are caused by viruses, antibiotics are ineffective, and the .... Viruses that cause fevers are contagious as long as the fever is above a 100.4 ...


A contagious virus generally attacks your body over 10 days. View our sample timeline of the life of a virus for more info.