Pregnant Women & Influenza (Flu)
Flu is more likely to cause severe illness in pregnant women than in women who are not pregnant. Changes in the immune system, heart, and lungs during pregnancy make pregnant women (and women up to two weeks postpartum) more prone to severe illness from flu, as well as to hospitalizations and even death. Pregnant women with flu also have a greater chance for serious problems for their developing baby, including premature labor and delivery.
The Flu Shot is the Best Protection Against Flu
Getting a flu shot is the first and most important step in protecting against flu. The flu shot given during pregnancy has been shown to protect both the mother and her baby for several months after birth from flu. The nasal spray vaccine should not be given to women who are pregnant. Learn more about the flu vaccine.
The Flu Shot is Safe for Pregnant Women
The risk of premature labor and delivery increases when pregnant women get the flu, and there is a greater chance of their babies having birth defects. Flu shots are a safe way to protect the mother and her developing baby from serious illness and complications from flu. The 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. It is very important for pregnant women to get the flu shot. See Seasonal Flu Vaccine Safety and Pregnant Women for more information.
Other Preventive Actions
In addition to getting the flu shot, pregnant women should take additional everyday preventive actions.
Early Treatment is Important for Pregnant Women
If you get sick with flu symptoms call your doctor right away. There are prescription antiviral drugs that can treat flu illness and prevent serious flu complications. CDC recommends that pregnant women with flu symptoms be treated with these drugs.
Having a fever caused by flu infection or other infections early in pregnancy can lead to birth defects in a baby. Pregnant women who get a fever should treat their fever with Tylenol® (or store brand equivalent) and contact their doctor as soon as possible.
When to Seek Emergency Medical Care
If you are pregnant and have any of these signs, call 911 right away:
- Difficulty breathing or shortness of breath
- Pain or pressure in the chest or abdomen
- Sudden dizziness
- Severe or persistent vomiting
- High fever that is not responding to Tylenol® (or store brand equivalent)
- Decreased or no movement of your baby
Note: There is no recommendation for pregnant women or people with pre-existing medical conditions to seek special permission or secure written consent from their doctor for influenza vaccination if they get vaccinated at a worksite clinic, pharmacy or other location outside of their physician's office. For more information, visit Misconceptions about Seasonal Flu and Flu Vaccines.
- Q&A: Seasonal Flu Vaccine Safety and Pregnant Women
- Print Materials: Pregnant Women
- People at High Risk of Developing Flu–Related Complications
- Treating Influenza (Flu)[927 KB, 2 pages, 8 ½" x 11"]
- Pregnant Women: Answers to Common Questions about the Flu Vaccine [Streaming, 5 min 43 sec]
- Preventing Flu During Pregnancy, A Cup of Health with CDC (3 MB, 3 min 38 sec)
- Preventing Flu During Pregnancy, A Minute of Health with CDC (1 MB, 59 sec)
- Flu Vaccination Videos for Kids, Parents and Pregnant Women
- Letter to Providers: Influenza Vaccination of Pregnant Women (October 9, 2014)[324 KB, 2 pages]
- New England Journal of Medicine Perspective, “2009 H1N1 Influenza and Pregnancy — 5 Years Later”
- ACIP Recommendations: Influenza Vaccination for Pregnant Women*
*Information included in the 2013-2014 ACIP seasonal influenza recommendations regarding the use of influenza vaccines in pregnant women should be considered current for the 2015-2016 influenza season.
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