Four years after the WHO declared the COVID-19 outbreak to be a pandemic, researchers say much is still not understood about a common complication: long COVID.
COVID-19 vaccines were found to cut risk of heart failure by up to 55% and blood clots by up to 78% following COVID infection, according to a new study.
A new CDC study published Wednesday found that COVID-19 patients are 4.3 times more likely to develop chronic fatigue than those who have not had the virus.
As COVID, flu and other viruses continue spreading, an expert says respiratory illness season can lead to an increased risk of heart problems for many Americans.
U.K. health officials are urging millions of parents to book their children in for missed measles, mumps and rubella shots amid a sharp increase in the number of measles cases and the lowest vaccination rates in a decade
A doctors' group is offering free measles vaccines for unvaccinated residents in Philadelphia to fight an outbreak that has infected eight people so far.