The Surprising Reasons Behind Americans Skipping COVID Boosters

A new study suggests that experiencing side effects such as chills, fatigue, headache, and malaise after receiving a Covid vaccine may indicate a robust immune response. People who had these symptoms after the second dose of the vaccine had higher levels of antibodies against the coronavirus at one month and six months after vaccination compared to those who did not have symptoms. The study also found that an increase in skin temperature and heart rate correlated with higher antibody levels. While the relative increase in antibody levels among those with side effects was small, it suggests that individuals who have a rough time after vaccination are likely to be well protected from the virus.