Add Yahoo as a preferred source to see more of our stories on Google. Where will the next pandemic come from? One expert says his "bet is on viruses." (Getty Images/Science Photo Libra) (Getty ...

Infectious diseases are illnesses caused by pathogenic microorganisms—including viruses, bacteria, fungi, and parasites—that invade a host, replicate, and ...

Imbalances in our oral microbiome — the millions of bacteria, viruses and fungi that live in our mouth — have been linked to many systemic diseases, including Alzheimer’s, diabetes and certain cancers ...

Nearly four years after COVID-19 emerged, public health experts already say it’s not a matter of if we’ll have another pandemic — but when. So Yahoo Life asked several experts for their take on where ...