Vaccines in pregnancy

Vaccines in pregnancy

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Although many medications and immunizing injections are forbidden for pregnant women due to possible adverse effects on the mother and baby, there are a number of vaccinations recommended during pregnancy. Some of them protect the health of the pregnancy, while others transmit antibodies to the baby's body for its first 3-6 months of life after birth.


Ideally, women who are old enough to conceive a baby should be vaccinated against various common ailments before becoming pregnant. Even so, certain types of vaccine have proven effective during pregnancy.

Active vaccine and inactive vaccine

The vaccine has the role of protecting you against various diseases that threaten your health by destroying viruses and bacteria that enter the body. The antibodies acquired by immunization will not allow the various diseases to settle, and your baby will be able to grow freely in the womb.

Pregnant women should clearly distinguish between active vaccine (not recommended during pregnancy) and inactive vaccine (allowed during this period). The first contains viruses and live, weak bacteria, unable to produce infections but meant to stimulate antibody production. However, even the slightest chance of getting the disease through the active vaccine causes doctors to avoid its administration to pregnant women.

The inactive vaccine is designed from dead batteries, which prevent various health problems and are effective if they are administered in multiple doses, periodically.

Safe vaccines during pregnancy

Immunization with inactive vaccines does not cause congenital malformations or pregnancy complications. Moreover, they are even recommended for the prevention of common diseases.

Pregnant women have access to the following vaccinations:

  • influenza vaccine (pregnant women are most at risk of developing complications if they contact the influenza virus);
  • Hepatitis B vaccine;
  • tetanus and diphtheria vaccine (the fetus may be infected at birth or during labor due to specific surgical maneuvers at birth);
  • Hepatitis A vaccine (the risks of fetal exposure to infection are greater than the side effects of the vaccine);
  • the polio and yellow fever vaccine (only in the case of the maximum risk of infection);
  • rabies vaccine (only in case of animal bite).

Vaccines prohibited during pregnancy

The next category of vaccines is contraindicated in pregnancy, regardless of the degree of risk to which the pregnant woman is exposed to the development of a disease. For example, rubella vaccine may endanger the normal development of the fetus, and the varicella vaccine may cause congenital malformations of the fetus and fatal mother's pneumonia.

In the case of other immunizations not recommended by specialists, doctors have too little data on their side effects to administer safely to future mothers.

  • tuberculosis vaccine;
  • rubella and measles vaccine;
  • varicella vaccine;
  • the polio vaccine;
  • mumps vaccine;
  • smallpox vaccine.

Vaccination depending on the situation

With the exception of the flu vaccine, which can be given from the second trimester of pregnancy, doctors recommend immunizing pregnant women when there is a considerable risk of contracting an infection.

In most situations, vaccination becomes very necessary for pregnant women working in an environment at high risk of infection, depending on the age of pregnancy and the hazard-benefit ratio.

Vaccination against diphtheria and tetanus can be done in the last trimester of pregnancy (in the 7th or 8th month), the maternal antibodies being able to offer passive immunity to the baby, until it can be vaccinated, at the age of 2 months. .

In underdeveloped countries, many children die immediately after birth due to various bacteria contacted by their mothers during pregnancy.