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Can Getting Immunizations Affect My Unborn Baby?

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My workplace expects its employees to get several immunizations regularly. But I'm 5 months pregnant and scared of what the vaccines might do to my baby. Should I be concerned?
- Emma

It's best to wait until after your pregnancy for most vaccines, but a few are considered safe during pregnancy. These include: influenza (but only the shot made with the inactivated virus), hepatitis B, meningococcus, rabies, and tetanus/diphtheria.

A doctor might recommend that a pregnant woman get immunized during pregnancy if all of the following are true:

  • there's a good chance that she could be exposed to a particular infection
  • the infection would pose a risk to her or the baby
  • the vaccine is unlikely to cause harm

For example, the influenza shot is recommended for all women who will be in their second or third trimester of pregnancy during flu season because:

  • during flu season, exposure to the virus is high
  • pregnant women - especially those in late pregnancy - are at increased risk for severe symptoms from the flu
  • the vaccine is safe for pregnant women

For more information, check out these articles.

A Week-by-Week Pregnancy Calendar
Frequently Asked Questions About Immunizations
Staying Healthy During Pregnancy
10 Things That Might Surprise You About Being Pregnant

Reviewed by: Elana Pearl Ben-Joseph, MD
Date reviewed: May 2006

Have a question? Email us .

We regret that we can't reply to any email inquiry. Although we can't reply personally, you may see your question posted to this page in the future. If you're looking for medical advice, a diagnosis, or treatment, consult your doctor or other qualified medical professional. If this is an emergency, contact emergency services in your area.

Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

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