A woman's immune system is less effective during pregnancy, which means her body may react differently to vaccinations. Even so, some protection is often better than no protection at all.
When considering whether or not to vaccinate, the risk posed by the vaccine itself is balanced against the risk of a serious adverse reaction and the risk of catching a serious disease. So called “live vaccines” should never be given to pregnant women. These include vaccinations against yellow fever, mumps, measles and rubella. We further advise waiting one month after such a vaccination before becoming pregnant.
Whether or not be vaccinated - especially when pregnant and contemplating a journey abroad - is a decision that should be taken in consultation with an expert in the field of health advice for travellers, who can take into consideration each person’s special circumstances. All of the following need to be carefully evaluated for each individual:
Most vaccines can be given while breastfeeding. A yellow fever vaccination is not recommended during breast-feeding (until the child is 6 months old).