Medicine

A new vaccine, so far tested only in mice, broadly activates the immune system against a wide array of bacteria and fungi.

An early trial hints that psilocybin could be a safe and effective treatment for depressive episodes in bipolar II disorder and should be studied further.

Trans and gender-diverse people people who take testosterone face a risk of blood thickening, but the largest study to date in the U.S. suggests that this side effect is rare.

Using a CRISPR-guided technique called "base editing," scientists edited the genes of liver cells in 10 people's bodies.

There's now an FDA-approved vaccine for chikungunya, a mosquito-spread virus that can cause fever, severe joint pain, and rarely, death.

A study found that many common antibiotics were less than 50% effective at treating serious bacterial infections in children and newborn babies in the Asia-Pacific.

Scientists say they've discovered CBD in a shrub that belongs to the same family as cannabis, although they've yet to publish the research.

A new tool may be able to predict the effectiveness of herbs used in traditional Chinese medicines — but what do experts think of its assessments?

A new antibody shot called Beyfortus was recently approved to protect babies from RSV, but it's in short supply this season.

Experts across public health, microbiology and biochemistry agree that we'll still have antibiotics in 50 years, but the drugs may take a different form than those we have today.