Pregnancy causes stress on the heart and circulatory system because the blood volume rises from 30% to 50%, which puts more ...

Higher rates of childhood Streptococcus pyogenes (group A Streptococcus (GAS)) infections following the COVID-19 pandemic ...

If you grew up in the United States after the middle of the past century, you've probably never thought much about rheumatic fever. And for good reason. In that era, ...