This flu season is a particularly severe one, and it"s no over however — wellness officials say flu activity will likely remain elevated because that at the very least several an ext weeks. But if you already caught the flu, space you in the clear for the remainder of the season?

Unfortunately, no. Experts say it is possible to catch the flu twice in one season. That"s due to the fact that there space multiple strains of flu viruses turn around at any one time, said Dr. William Schaffner, an infectious-disease specialist in ~ Vanderbilt university Medical center in Nashville. So getting sick with one stress, overload of flu won"t necessarily defend you indigenous a various strain.

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But the an excellent news is the it"s pretty rare to record the flu twice in a solitary season. Having this occur would be "quite a punch of poor luck," Schaffner called Live Science. <6 Flu Vaccine Myths>

Most civilization who obtain the flu this season are obtaining sick with the H3N2 strain. Yet a smaller section of human being (around 10 come 15 percent) are getting the H1N1 stress, overload or the influenza B virus, follow to data indigenous the Centers for an illness Control and also Prevention. (H3N2 and H1N1 are both strains of influenza A.)

Seasonal flu shots contain 3 to 4 strains that flu virus, due to the fact that there isn"t much "cross protection" between strains, Schaffner said. It"s feasible that obtaining sick through one kind of influenza A virus would market some usually protection versus another kind of influenza A, yet it probably wouldn"t offer you any type of protection versus the influenza B virus, Schaffner said.

If you do capture the flu, and you haven"t received the flu vaccine because that the season, doctors generally recommend that you still acquire a flu shoot after you"re no much longer sick, particularly if it"s beforehand in the flu season, Schaffner said. The CDC recommends the flu vaccine for everyone ages 6 months and older.

This flu season is turning out come be one of the worse since the 2009 "swine flu" epidemic, CDC officials said last week. Health and wellness officials are seeing "widespread" flu activity across the whole country.

For the past 5 flu seasons, wellness officials discovered that flu activity was elevated for roughly 16 weeks. So much this season, flu activity has been elevated because that nine weeks, an interpretation that the flu season might be only about halfway over, the CDC said.

Original post on Live Science.

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Rachael Rettner
Senior Writer
Rachael has actually been through Live Science due to the fact that 2010. She has a master"s level in journalism from brand-new York University"s Science, Health and also Environmental report Program. She additionally holds a B.S. In molecule biology and also an M.S. In biology native the university of California, san Diego. Her occupational has appeared in Scienceline, The Washington Post and Scientific American.