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As Infectious Diseases go, it is not that hard for the body to fight and the immune system can usually fight it within 7 to 10 days. Sometimes two weeks, like in some people with H1N1, but a normal healthy person with a healthy immune system can fight a flu virus faster than it can fight a bacterial infection in many cases, especially without other treatment like antibiotics to help.

The flu virus is hard to fight with any medications, which is the opposite of most bacterial infections. There are not many medications for treating the flu and there are no medicines that "kill" the virus outright like antibiotics that we have to kill bacteria.

Viruses are able to mutate rapidly and make little changes to their shape, protein coatings and other things to help them avoid the defenses the body may have developed to it before the mutation. The body must start all over again to build immunity to the newest mutation. This makes it so that more and more "new" viruses are developing all the time that we have to one by one fight and create antibodies for protection against. This "getting-around-our-immune-systems" defense" is how viruses continue to infect and replicate even after we have inactivated a prior version of the virus with our antibodies.

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14y ago

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