Epidemiology

Research is under way to determine whether the mutation-laden lineage BA.2.86 is nothing to worry about — or has the potential to spread globally

The bite of the lone star tick can cause an allergy to red meat, as well as to dairy and some medications

As summers get hotter and longer, experts provide advice on how to survive heat-related emergencies

Malaria grabs headlines, but U.S. residents are more likely to encounter West Nile virus and other mosquito-borne illnesses

A new study shows U.S. maternal mortality rates are increasing, and health care providers and advocacy groups are racing to build better care for new parents

Researchers say understanding differences in when menopause starts in racial and ethnic groups can help with screening and preventive care

Genetic susceptibilities, the environment and the body’s response to inflammation all influence our odds of falling ill

The greyhound racing industry has been implicated in the rise of drug resistance in hookworms—which can infect dogs and humans

The newest SARS-CoV-2 strain may cause red, watery eyes. But the symptom can have other causes, too

Unregulated wild animal markets increase the risk of more epidemics

Influenza D is only known to sicken cattle and pigs, but it “has everything it needs” to jump into people

Recently released data from samples of the COVID-causing virus SARS-CoV-2 at the market where many early cases of the disease occurred suggest animals were present but stop short of proving that they were infected and transmitted the virus to humans