Medically reviewed by Sohaib Imtiaz, MD Though there are several immunity-boosting foods, a diet rich in citrus fruits has ...

While Pope Francis' life is not in immediate danger, the level of multiple infections in his lungs means he is not completely ...

Apical periodontitis, a chronic and hard-to-treat dental infection, affects more than half of the population worldwide and is ...

Researchers have identified a new mechanism by which a key bacterium in periodontitis evades the immune system.

A headache lasting more than 72 hours must be addressed in the emergency room or with a doctor. Here's why it happens and the ...

Pope Francis was conscious but still receiving high flows of supplemental oxygen Sunday following a respiratory crisis and ...

Discover how H. pylori infection affects 40% of Americans and increases cancer risk. Learn testing options, treatment methods, and prevention strategies.

From herpes to HIV, discover why STD rates are climbing among senior adults and learn the subtle warning signs that shouldn't ...

Deer infected with fatal chronic wasting disease have been spotted closer to central Ohio. What steps might be taken as a ...

Pope Francis was in critical condition Saturday after he suffered a long asthmatic respiratory crisis that required high ...