Inflammation and damage to the olfactory system from shingles, COVID-19 and herpes infections may contribute to Alzheimer’s disease.

A new blood test is 90% accurate in figuring out if an infection is bacterial or viral. It could help cut antibiotic overuse globally.

A new study shows "one's cognitive performance before exposure to a respiratory virus can predict the severity of the infection."

An overactive immune response to infection can be deadly. Studying how one key player called tumor necrosis factor, or TNF, induces lethal immune responses could provide new treatment targets.

While RSV can become severe for any child, it poses a particularly serious threat for the youngest babies and for high-risk children.

Prejudice and stigma can discourage the communities most affected by infectious diseases from seeking care. Inclusive public health messaging can prevent misinformation and guide the most vulnerable.

An effective nasal vaccine could stop the virus that causes COVID-19 right at its point of entry. But devising one that works has been a challenge for researchers.

What is RSV and why is it so widespread among kids this year? Experts have answers, as well as tips to keep your family healthy.

Using a Nobel Prize-winning technique called cryo-EM, researchers were able to identify potential areas on the hepatitis C virus that a vaccine could target.