Dr. Theresa Cullen, county public health director, said the timeline for the rollout of vaccinations to the priority groups is dependent upon vaccine availability, which is still limited in the

It’s the biggest vaccination campaign in history

With limited doses available, and a pandemic claiming more lives every day, a complex moral calculus has begun. Five thinkers weigh the choices ahead.

The recommendations, which come two days after regulators authorized a second coronavirus vaccine, will guide state authorities in deciding who should have priority to receive limited doses of...

"We are faced with the situation, at least in the short term, where we have a limited supply of vaccine available to us," Dr. Nancy Messonnier of the CDC said.

The recommendations, which come two days after regulators authorized a second coronavirus vaccine, will guide state authorities in deciding who should have priority to receive limited doses of...

Testing of the prevalence and effects of the new variant will take weeks, but scientists don’t expect it to cause more severe disease or be resistant to the vaccine

The device, based on an invention by University of Arizona optical scientists, can be rapidly “trained” to detect any pathogen, from the common flu to future, as yet unknown threats.

A tiny fingertip device can give you valuable information about your health during a bout of Covid-19 or any respiratory illness.

The at-home saliva tests don’t require risky face-to-face interactions or an uncomfortable nasal swabs. Other researchers are also working on test strips similar to a home pregnancy test.

Medical practice over the internet can result in faster diagnoses and treatments, increase the efficiency of care and reduce patient stress.

Chills, muscle pain, sore throat and headache are among the ailments now considered potential indicators of the disease.

A respiratory virus that originated in China has infected more than 900,000 people worldwide, with at least 200,000 cases in the United States.