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Cold, Flu, & Cough Health Center

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Swine Flu and Pregnancy

By Karen Bruno
WebMD Feature
Reviewed by Louise Chang, MD

Pregnant women are more likely to be hospitalized and are at higher risk of death and complications from flu, including swine flu and seasonal flu, than the general population. As scary as that sounds, experts say that most pregnant women who become ill with H1N1 swine flu will not have a serious problem. If you are pregnant, here's what you need to know.

Why are pregnant women at higher risk from swine flu?

Experts aren't entirely sure, but they surmise that as the fetus develops and grows there’s more pressure on the mother’s breathing and lung function, increasing the risk of her developing secondary infections such as pneumonia. Most of the maternal deaths from swine flu occurred in the third trimester.

Also, there are changes that happen to a woman's immune system while she is pregnant that can make her more susceptible to infections such as flu.

Will pregnant women be allowed to take the swine flu vaccine when it is available?

Yes. Pregnant women fall under a “high risk” category, according to CDC guidelines. A vaccine advisory committee recommended that pregnant women and those caring for and living with infants be among the first in line for the vaccine.

Until the vaccine is available, what is the best way for someone who is pregnant to prevent swine flu?

“I am recommending that my patients avoid contact with anyone who has flu-like symptoms, including fever, muscle aches, and upper respiratory symptoms. I’m also telling my patients to be cautious around anyone whose close contacts have similar symptoms, especially children,” says Rebecca Yee, MD, an ob-gyn in San Francisco. Pregnant women should wash their hands frequently and avoid touching their eyes, nose, and mouth. They should avoid crowded settings in communities with swine flu outbreaks.

If a pregnant woman gets swine flu, what is the best course of treatment?

She should take antiviral medication with suspected or confirmed flu as soon as possible, according to the CDC. Antiviral medication (Relenza, Tamiflu) can be taken at anytime during pregnancy.

If a pregnant woman or woman who is up to two weeks after delivery or pregnancy loss has had close contact with someone with flu, she should be considered for treatment with antiviral medication. The CDC defines close contact as caring for or living with a person who has confirmed, probable, or suspected influenza, or having high likelihood of exposure to respiratory or bodily fluids from this person.

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