COVID-19 cases are skyrocketing across the US. Testing has ramped up over the past few months, but increasing hospitalizations, deaths and test-positivity rates show that the virus is out of control.

'Normal' body temperature has declined in urban, industrialized settings like the US and UK. Anthropologists find the trend extends to Indigenous people in the Bolivian Amazon – but why?

Widely adopted in the US when pandemic precautions kept people home, telehealth faces a challenge as insurance coverage changes, right when its popularity had surged.

Scientists in the UK and Germany discovered a new doorway that the COVID-19 virus uses to infect human cells. This reveals new therapeutic possibilities for blocking the virus.

Over the approachin holidays, people around the world will want to travel to see friends and family. Getting tested for the coronavirus can make this safer, but testing alone is not a perfect answer.

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

In a new study, people with an untreated vitamin D deficiency were almost twice as likely to test positive for COVID-19 as people without a deficiency.

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.