C. difficile is the most common cause of antibiotic-associated diarrhea in developed countries. New findings may help treat and even prevent it.

Early in the pandemic, STI testing decreased 63% for men and 59% for women. "The quickest way for people to spread STIs is to not know that they have one."

Researchers have developed a new model that can predict COVID-19 infection rates in Texas two to three weeks in advance.

Researchers have found evidence of Bartonella infection in the blood of people with schizophrenia and schizoaffective disorder, a new study shows.

In a new study with mice, a vaccine administered directly to the bladder cleared the bacteria that cause urinary tract infection. Can it work for people?

People with severe COVID-19 and a secondary blood infection had longer hospital stays and poorer outcomes, research finds.

There's growing evidence that Bartonella infection can involve skin lesions and mental symptoms, report researchers.

Artificial intelligence and deep learning that look at "rash selfies" could offer a way to more accurately detect and identify Lyme disease.

More than half of patients hospitalized with suspected COVID-19 in Michigan during peak months got antibiotics. Later tests showed 96.5% didn't need them.

A new synthetic antibody may prevent the coronavirus from causing infection by blocking attachment to a key enzyme. It shows promise in a study with mice.