Deadly hospital infections caused by Clostridioides difficile, or C. diff, may not result from transmission after all, researchers report.

Being infected with multiple strains of the parasite that induces Chagas disease may actually hinder its progression, a new study shows.

"These bacteria can be transmitted through heterosexual, vaginal sex, something that has never been shown in research before."

A new substance may treat staph infections in people with skin lymphoma. That's good news for patients and fighting antibiotic resistance.

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."

A new drug combination appears to be more effective against complicated urinary tract infections, especially those that are drug-resistant.

We tend to eat, drink, and move less when we feel sick. A new study in mice uncovers brain cells that control these "sickness behaviors."

EarHealth, a new earbud system that uses artificial intelligence, may one day detect ear infections and other ear-related ailments.

Sepsis develops quickly and is notoriously hard to detect. A new AI system that identifies who is at risk could prevent a huge number of deaths.