The Claim:
Once again, COVID vaccine miscarriage and fertility claims are making the rounds.
The Facts:
While COVID itself has been shown to increase the risks of adverse maternal and neonatal outcomes, studies do not show that same association with the COVID vaccine. Data collected from the United States through v-safe and from Norway both show that there is no increased risk of miscarriage after the COVID vaccine.
One hypothesis has its roots in the genetic similarities between SARS-CoV-2 and syncytin-1, a protein that plays an important role in placenta development. The mRNA COVID vaccine instructs a person’s cells to create spike proteins to teach the immune system how to spot and destroy a real COVID virus. However, the spike protein is not similar enough to syncytin-1 to make a body attack it.