Neither Moderna nor Pfizer enrolled pregnant women in their Covid-19 vaccine trials, and both say they plan future study
The World Health Organization released new guidance about Moderna Inc.’s Covid-19 vaccine this week, recommending generally against the use of the vaccine during pregnancy except in those at high risk of exposure or having a severe case.
“In the interim, WHO recommends not to use mRNA-1273 in pregnancy, unless the benefit of vaccinating a pregnant woman outweighs the potential vaccine risks, such as in health workers at high risk of exposure and pregnant women with co-morbidities placing them in a high-risk group for severe Covid-19,” the guidance said. The agency said its recommendations would be updated as more data become available.
The recommendation echoes guidance for Pfizer Inc. and BioNTech SE ’s vaccine released earlier this month. The WHO said it doesn’t recommend pregnancy testing before vaccination, nor does it recommend delaying pregnancy following vaccination. The WHO does recommend that lactating women be offered the vaccines, saying that the shots are unlikely to pose a risk to breast-feeding children.