Nicoletta Lanese

A tick-borne illness called babesiosis is spreading in the northeastern U.S.

Only a few people have been cured of HIV, but scientists are working to develop cures that could be accessible to more of those infected.

Newly-released genetic data suggests raccoon dogs carrying SARS-CoV-2 may have been at the Huanan Seafood Wholesale Market in late 2019.

A woman who received a stem cell transplant to treat her HIV is still virus-free more than five years after the procedure and 30 months after she stopped taking HIV medication.

Tissue-based models of the human heart are being sent to the International Space Station.

A decades-long study finds that many prostate cancer patients can delay aggressive treatments and instead receive "active surveillance."

A young child had the remnants of her absorbed twin removed from her head.

Scientists created a map of an entire larval fruit fly brain that shows all 548,000 synapses in the organ.

Opioids account for a greater proportion of fatal pediatric poisonings than they did a decade ago.

A person with measles likely exposed others to the virus while attending a large spiritual revival, the CDC warned.

A study suggests that psychedelics can access receptors inside cells that standard antidepressants usually can't affect.

The Food and Drug Administration authorized a new test that detects SARS-CoV-2, influenza A and influenza B.

The American Academy of Pediatrics released new guidelines for treating kids and teens with obesity.

Brain organoids, or minibrains, contain human tissues and have potential uses in basic research, drug development and computer science.

A person in Charlotte County, Florida caught a rare "brain-eating" infection.

A mother in Alabama gave birth to rare "MoMo" twins after a previous twin pregnancy.

A new study revealed what happens in the brain when people plan and execute learned movement patterns.

Scientists grew stem cells from bats that may help explain why they can carry deadly viruses without being harmed by them.

After being diagnosed with aphasia in 2022, Bruce Willis has now been diagnosed with frontotemporal dementia.

A baby with a rare inherited disorder became the first child in the U.K. to receive a new gene therapy for the condition.

The FDA can now approve drugs that haven't been tested in animals, but don't expect drug companies to switch gears too quickly.

A man developed a rare and fatal case of gangrene of the penis.

Mississippi has seen more and more babies born with syphilis in recent years.

A persistent bruise on a woman's hand was actually a tumor.

An injectable interferon drug significantly reduced the risk that people with COVID-19 would be hospitalized with the disease.