A study published in the American Journal of Epidemiology found that COVID-19 vaccines do not affect fertility in either women or men. Coronavirus infection may have a negative impact on male fertility.
The authors of the study are scientists from the Boston University School of Public He alth in Boston (Massachusetts, USA). The researchers analyzed data from 2,126 US and Canadian women and their partners. All couples took part in the Pregnancy Study Online (PRESTO) study, to which women trying to conceive are recruited - all the time, until the sixth month after giving birth, their he alth is monitored. Among other things, information on lifestyle and he alth as well as sociological and demographic data is collected regularly.
Researchers have investigated whether getting vaccinated against COVID-19 with one of the vaccines available in North America - Pfizer, Moderna, or Johnson & Johnson - might have an impact on the likelihood of a woman becoming pregnant during the menstrual cycle.
They found that the pregnancy rate for women who received at least one dose of the vaccine was almost identical to that for women who did not take the opportunity to vaccinate. Additional analyzes, in which scientists took into account the number of doses taken, the vaccine manufacturer, fertility history, occupation and place of residence also found no association between COVID-19 vaccination and fertility.
Scientists have observed that SARS-CoV-2 infection may temporarily reduce male fertility. Men who tested positive for coronavirus less than 60 days after the cycle in question had reduced fertility compared to men who had previously been infected with SARS-CoV-2 or tested positive within 60 days or more of the cycle menstrual flow. The authors emphasize that these results confirm the results of previous studies that linked COVID-19 with a decrease in sperm quality and other fertility disorders. According to the researchers, this can be avoided by vaccination.
“Many people of reproductive age cite concerns about fertility as a reason for not vaccinating. Our study indicates for the first time that vaccination against COVID-19 of any of thepartners have no effect on the fertility of couples trying to get pregnant through intercourse ”- commented the lead author of the study, Dr. Amelia Wesselink. As she added, the time to get pregnant for couples was very similar regardless of whether someone took the vaccine or not.
As the co-author of the study Dr. socio-economic status, medical conditions, occupation or level of stress.