Study shows that vaccines against Covid do not affect fertility in men or women

Las vacunas no afectan el que puedas o no concebir pero el coronavirus sí.


Vaccines don’t affect whether or not you can conceive, but the coronavirus does.

Photo: RAYNER PEÑA R. / EFE

There are many myths and beliefs around vaccines against Covid, which make many people hesitate to apply them considering that they are not entirely safe despite all the scientific evidence that affirms that they are safe and effective.

One of the existing myths about coronavirus vaccines is that these can affect the sexual life of people, as well as make certain modifications to the body that would end up causing damage in intimate relationships.

These beliefs mean that there are still many people who prefer not to be vaccinated because they do not want to run the risk of suffering from these and other types of supposed effects generated by anti-Covid vaccines.

Researchers from the Boston University School of Public Health, together with other institutions in the United States, interested in this particular issue, conducted a study in order to verify or rule out whether coronavirus vaccines could really modify certain sexual aspects. , in particular whether or not they inhibit fertility in humans.

The study was based on analysis of data from 2,126 women, ages 21 to 45, in the US and Canada, who signed up to volunteer for the program in December 2020 through September 2021 and were subsequently asked a follow-up of the changes they may have experienced during the 2 months after being vaccinated.

Participants completed online questionnaires every 8 weeks asking about their reproductive and medical history, among other factors, and given the option to invite their male partners to complete questionnaires as well. Among the participants, 73% of the women and 74% of their male partners had received at least one dose of the vaccine.

Once all the data had been collected and analyzed, the experts pointed out that they did not find that the vaccines had not caused problems for women to conceive within one menstrual cycle; but nevertheless, they did find that couples were slightly less likely to conceive if the man had been infected with Covid within a 60-day period.

More research should be done on this topic. But the National Institutes of Health (NIH) explained that this could be caused because it is proven that fever reduces sperm count and this is one of the main symptoms of coronavirus.

“These results indicate that male SARSCoV-2 infection may be associated with decreased fertility in the short term and that vaccination against Covid-19 does not impair the fertility of either partner.” , the researchers wrote in the study.

“This is in addition to the evidence from animal studies, studies of humans undergoing fertility treatment, and Covid-19 vaccine trials; none found an association between vaccination against Covid-19 and lower fertility. Similarly, several studies have not documented any appreciable association between vaccination against Covid-19 and the risk of miscarriage,” they added.

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