Health

People who are fully vaccinated against COVID-19 in the U.S. are strongly protected against the delta variant of the coronavirus, and do not need booster shots yet, according to experts.

The first case of human monkeypox in the U.S. in nearly 20 years has been confirmed in a U.S. resident who recently returned from traveling to Nigeria.

The company is investigating how benzene ended up in the products.

Phages, or viruses that infect bacteria, pressure bacteria to evolve quickly.

The respiratory system is responsible for taking in oxygen and expelling carbon dioxide. The main organs are the lungs, which work in concert with the cardiovascular system.

Poop transplants may have helped two patients with risk factors avoid severe COVID-19, a new case report suggests.

The method has not yet been tested on animals or people.

Around 100 cases of Guillain-Barré have been reported in people who received the J&J vaccine.

The infection was fatal.

The tool, called iAge, also hints at targets for future medical treatments.

After 50 years of searching, neuroscientists have found what could be called "grandmother neurons," they are reporting.

Women tend to outlive men because of biological and social factors.

Here's a look at the science behind SARS-CoV-2 variants and which coronavirus mutants are the most concerning in different areas.

People who test positive for the coronavirus should steer clear of their pets.

So far, lambda has been detected in 29 countries, with high levels of spread in South American countries.

The Johnson & Johnson COVID-19 vaccine is highly effective against the highly transmissible delta variant, the company announced.

Parts of the southern U.S. are seeing off-season spikes in a respiratory virus called RSV, public health experts warn.

The world's best free divers can survive brain oxygen levels lower than those found in seals, according to a new study.

Research suggests that gut bacteria may also influence human brain activity and behavior.