Zika has been in the news since early 2016, but a lot has transpired since the virus first made headlines. Are you up to date on the latest news?

Despite being a major public health concern, the definition of sepsis has not been reevaluated in nearly 15 years — until now that is.

Only one bacterial species has been credited for causing Lyme disease in humans — until now.

The common cold sends more people to the doctor than just about any other illness. Some patients need antibiotics, but it can be hard to decide which ones. That all may be about to change.

Mosquitoes aren't just a pesky nuisance on warm summer days — many carry disease. And the newest of these mosquito-borne diseases is Zika virus.

Nothing can ruin a vacation like a bout of food poisoning. But new evidence suggests the risk may be lower than ever — at least on US cruise ships.

Antibiotics can be a lifesaver for serious infections. But used unnecessarily, they can lead to a much bigger problem.

A few decades ago, contracting Lyme disease in the US may have seemed like a stroke of bad luck. But today, the risk may be a whole lot greater.

In the fight against antibiotic resistance, the National Institutes of Health (NIH) is hoping for a breakthrough.