COVID-19 vaccines do not cause infertility, health experts say

According to experts from John Hopkins Medicine, the possible origin of the legend is a false report that has appeared on social media alleging that the coronavirus and the vaccines against it contain a spike protein called syncytin-1. This protein is vital to the growth and attachment of the placenta during pregnancy, and damage to it can lead to miscarriage as well as infertility.

In truth, however, the COVID-19 high protein and syncytin-1 do not share a similar genetic code, which means that vaccines do not include this increased risk of infertility.

In an article aimed at debunking myths about COVID-19 vaccines, doctors at Johns Hopkins University noted that "the two spinal proteins are completely different and distinct."

Dr. Lusine Agajanova, an assistant clinical professor in the Division of Reproductive Endocrinology and Infertility at Stanford University, told Yahoo News that these false claims about coronavirus vaccines that affect fertility in both men and women are "worrying" and have no "scientific basis." .

"We try to debunk myths and give the scientific background to whatever we do," Aghajanova said. "The short answer to the question - Can [COVID-19] vaccines affect my fertility? - The answer is no."

A pregnant woman receives an injection in the upper arm
A pregnant woman receives a COVID-19 vaccine at Skippack Pharmacy in Schwinksville, Pennsylvania, on February 11th. (Hannah Beier / Reuters)
Agaganova said the infertility myth that spread on social media was based on a fundamental misconception of how vaccines work.

"The mechanism of action of these vaccines does not even give us any theoretical possibility to affect fertility," Agaganova said.

Contrary to rumors, the COVID-19 vaccines do not contain a live virus. It also does not interact with or alter your DNA in any way. MRNA vaccines such as those pioneered by Pfizer / BionTech and Moderna use ribonucleic acid (mRNA) to stimulate an immune response that can protect against infection in the future. Once it delivers instructions to your cells, the messenger RNA is broken down and disappeared from the body.

Additionally, all COVID-19 vaccines have gone through strict safety protocols in order to obtain emergency use permission by the Food and Drug Administration. These vaccines are very reassuring, Agajanova says and "show that these vaccines are not only effective, but also safe for a wide range of people, age, ethnicity, gender, etc."

Concerns about potential infertility may also have arisen from the fact that pregnant women have been excluded from initial clinical trials of vaccines, a protocol that has been in place since the early 1960s, when it was discovered that a sedative called thalidomide, which was used to treat morning sickness and underwent clinical trials that caused it to develop. Serious birth defects Since then, researchers have been cautious about involving pregnant women in such experiments.

Although pregnant women have not been included in the COVID-19 vaccine trials, Aghajanova says, there is no evidence of fertility loss in animal studies, which have been an important part of the COVID-19 vaccine development process.

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