How long is someone with the flu contagious?

January 2, 2015 9:00 PM

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With flu season making it's earliest start in years, and certain strains of the virus hitting unlucky Americans hard this year, it’s important to be extra vigilant in your efforts to avoid catching it.

Some people who are infected with the influenza virus can actually transmit the illness before they begin to feel any symptoms.

Also read: Ukraine reports outbreak of H5 bird flu in backyard birds: OIE

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