It is very rare for a vaccinated individual to fully contract COVID-19 at least two weeks after vaccination, with a rate of 0.01% among Americans, according to a recent report from the Centers for Disease Control and Prevention (CDC) dated April 30. However, CDC data indicates that women make up the majority of those cases, representing 63% of infected individuals, according to Business Insider.
This aligns with clinical trial data suggesting that COVID-19 vaccines are less effective among women. The Pfizer vaccine has been shown to be 96.4% effective in men and 93.7% in women. Thus, its widely reported effectiveness rate of 95% is merely an average of these results. Meanwhile, the Moderna vaccine shows an effectiveness rate of 95.4% in men and 93.1% in women. For the Johnson & Johnson vaccine, the effectiveness rate is 68.8% in men and 63.4% in women.
Generally, women respond to vaccines more strongly than men, which often leads to a greater level of protection.
