Women fully vaccinated with the Pfizer-BioNTech vaccine had a higher level of protection than men who received the same shot, a new study showed.
The New England Journal of Medicine surveyed 4,800 health care professionals in israel from December to July.
It found that, among those aged 65 or older, women had an antibody count of 46%, while men of the same age had 37%.
It also found that women’s antibody levels were higher at peak levels of protection than men’s.
“Women generally develop stronger immune responses, including high antibody levels and greater T-cell activation, which can lead to faster infection control, but can also lead to more high reactogenicity (effects) after vaccines, ”Lead author Julianne Gee, MPH, a CDC epidemiologist, said Verywell.
Another recent report found the effectiveness of Pfizer’s vaccine to fall below 50% after six months of getting the second shot.
This is after the Food and Drug Administration’s green light booster for those 65 and older, and those at risk of serious illness.