As more Americans are getting vaccinated against COVID-19 and reporting their post-dose symptoms to the Centers for Disease Control, a pattern has emerged: Women are experiencing stronger side effects from the vaccines than men. In data collected from the first month of COVID-19 vaccinations, which included the Pfizer and Moderna vaccines, 79.1% of the vaccine side effects reported to the CDC were in women, despite women receiving just 61.2% of the doses. Women also accounted for almost all of the very rare, but possible, anaphylactic reactions to the two vaccines. Of the 19 people who experienced an allergic reaction to the Moderna vaccine, all were women, as were 44 of the 47 people who reported reactions to the Pfizer vaccine. To read the full story.