Pfizer’s COVID-19 vaccine leads to lower levels of semen, according to a new study.
Researchers analyzed 220 samples of semen from three sperm banks in Israel, drawn from men who received two doses of the vaccine. The semen collection was scheduled seven days after receipt of the second dose.
The researchers, led by Dr. Itai Gat with the Sperm Bank and Andrology Unit at the Shamir Medical Center and Tel Aviv University’s Sackler Medical School, found that there was a decrease in sperm concentration between 75 and 120 days post-vaccination.
The decrease led to a reduction in the motile count, or the number of sperm….