Health

A new analysis uncovers seasonal patterns of dengue, a mosquito-borne disease, across the Americas, which could help scientists anticipate future outbreaks

Peanut allergies more than tripled in U.S. kids between the late 1990s and late 2000s, and the prevalence has risen even more since then. Scientists are still searching for answers—and new ways to treat them.

Texas may have declared its measles outbreak over, but rising cases elsewhere and the return to school mean it could easily resurge

One-off cases of malaria in the U.S. may become more common as warming temperatures lead to booming mosquito populations

Unless you have celiac disease, there are few health benefits to a gluten-free diet

Remarkable new treatments can free millions of kids and adults from the deadly threat of peanut allergy, tackling one of our fastest-growing medical problems

Bucking national trends in childhood vaccination rates, more teens are getting recommended shots, including for measles and whooping cough

An ongoing civil war in Sudan has forced millions of people to flee their homes and move to camps, where a lack of water and sanitation infrastructure, along with heavy rains, are fueling a massive cholera outbreak. What role does the environment play in how the outbreak is spreading?

A new hormone-free birth control pill that reversibly stops sperm production has passed its first safety trial in humans, offering hope for more reversible contraceptive options.

Researchers are alarmed that an expansive executive order issued by President Donald Trump might upend a long-standing tradition of peer-review for grants

Experts say the painful infection, spread to people from mosquitoes, can get to many countries if it finds the right hosts

Speed and flexibility have made mRNA a blockbuster technology