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November 21, 2009
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Pregnancy: H1N1 Influenza (Swine Flu) and the H1N1 Vaccine

Swine Flu Symptoms, Diagnosis, and Vaccination

Medical Author: Benjamin C. Wedro, MD, FAAEM
Medical Editor: Melissa Conrad Stöppler, MD

Pregnant women are encouraged to receive the seasonal and 2009 H1N1 flu vaccine - swine flu vaccineThe pressure to manufacture and distribute the H1N1 vaccine before the H1N1 (swine) influenza virus begins its autumn spread is ongoing, but so far it seems that the virus may be winning. The race, though, is far from over, but in more than 40 states, the number of people being diagnosed clinically with the "swine" flu is growing.

"Clinically" is the key word, since testing for the influenza virus is no longer recommended. Instead, health care practitioners are using history as the guide to whether H1N1 is the likely diagnosis. The most frequent symptoms are fever, cough, shortness of breath, and fatigue. These are pretty non-specific complaints, but in today's setting of widespread influenza it is enough to be relatively certain that influenza is the cause? Less commonly, there may be chills, muscle aches, runny nose, sore throat, and headache. Interestingly, H1N1 also may present with vomiting and diarrhea, two symptoms that tend not to be associated with the usual influenza pattern.

Pregnancy and H1N1 influenza (swine flu) introduction

These questions and answers have been updated to include new information on 2009 H1N1 flu in pregnant women. Both seasonal and 2009 H1N1 flu viruses will circulate during the 2009-2010 flu season. A pregnant woman who thinks she has the flu should call her doctor right away to see if treatment with an antiviral medicine is needed. The medicine is most helpful if it is started soon after the pregnant woman becomes sick. The latest advice for getting seasonal and 2009 H1N1 vaccines during pregnancy is also included.

What if I am pregnant and I get 2009 H1N1?

Call your doctor right away if you have flu symptoms or if you have close contact with someone who has the flu. Pregnant women who get sick with 2009 H1N1 can have serious health problems. They can get sicker than other people who get 2009 H1N1 flu. Some pregnant women sick with 2009 H1N1 have had early labor and severe pneumonia. Some have died. If you are pregnant and have symptoms of the flu, take it very seriously. Call your doctor right away for advice.

What can I do to protect myself, my baby and my family?

Getting a flu shot is the single best way to protect against the flu. Talk with your doctor about getting a seasonal flu shot and the 2009 H1N1 flu shot. You will need both flu shots this year to be fully protected against flu. You should get both shots as soon as they are available to protect you and your baby. The seasonal flu shot has been shown to protect both the mother and her baby (up to 6 months old) from flu-like illness.

Talk with your doctor right away if you have close contact with someone who has 2009 H1N1 flu. You might need to take medicine to reduce your chances of getting the flu. Your doctor may prescribe Tamiflu® or Relenza® to help prevent 2009 H1N1 flu. To prevent flu, you would take a lower dose of the antiviral medicine for 10 days.

Is it safe for pregnant women to get a flu shot?

The seasonal flu shot has been given to millions of pregnant women over many years. Flu shots have not been shown to cause harm to pregnant women or their babies. The 2009 H1N1 flu shot is made in the same way and in the same places as the seasonal flu shot. It is very important for pregnant women to get both the seasonal flu shot and the 2009 H1N1 flu shot.

Who else should get a flu shot?

Anybody who will be taking care of babies younger than 6 months of age should get a seasonal flu shot and a 2009 H1N1 flu shot to protect against the flu. This includes you and any family members or other people who will be caring for your baby for the first 6 months of his or her life.

What else can I do?

Take these everyday steps to help prevent the spread of germs and protect your health and the health of your family:

  • Cover your nose and mouth with a tissue when you cough or sneeze, or sneeze into your sleeve. Throw the tissue in the trash after you use it.

  • Wash your hands often with soap and warm water, especially after you cough or sneeze. If soap and water are not available, an alcohol-based hand rub can be used.

  • Avoid touching your eyes, nose or mouth. Germs spread this way.

  • Try to avoid close contact with sick people.

    • If there is 2009 H1N1 flu in your community, pay extra attention to your body and how you are feeling. If you think you have the flu, call your doctor or clinic right away.

    • If you are pregnant and you live with or have close contact with someone who has 2009 H1N1 flu, talk with your doctor about medicines to prevent flu.

    • Have a plan for someone else to take care of a sick family member.

  • Stock up on household, health, and emergency supplies, such as acetaminophen (Tylenol®), water, and non-perishable foods.


Next: What are the symptoms of seasonal and 2009 H1N1 flu? »

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