Nicoletta Lanese

An ongoing tuberculosis outbreak in two Kansas counties has sickened dozens since January 2024.

By modifying 20 regions of the genome, scientists successfully bred mice with two male parents and raised them to maturity.

Female mammals typically carry two X chromosomes — one from each parent — and a new study suggests that the maternal X is linked to faster brain aging.

The FDA will no longer allow red dye No. 3 in foods or ingested drugs, citing evidence that high doses of the dye can cause cancer in male rats. There is no evidence it's carcinogenic in humans.

A new study describes a type of cartilage that may have been discovered, forgotten and found again at several points in history.

A study using lab-made models of the brain suggests that a herpes virus may be a key link between concussions and dementia risk.

The patient in Louisiana who contracted a severe case of bird flu has died, officials announced.

The Los Angeles County Department of Public Health has warned that raw pet food products have tested positive for bird flu and sickened pet cats in the area.

A new study hints at a "previously recognized" mechanism that links a rare chromosomal disorder to schizophrenia.

An initially "unknown" illness affecting hundreds in the Democratic Republic of the Congo may be attributable to malaria, malnutrition and a viral infection. But investigations are ongoing.

Researchers detected flame retardants in household items made from recycled black plastic. The study later received a correction — but regardless of this paper, the chemicals' health effects remain unclear.

A person in Louisiana has been hospitalized with the United States' first serious case of H5N1 bird flu, following 60 milder cases this year.

An Alabama woman underwent a transplant procedure to get a new kidney from a gene-edited pig.

When will MDMA be approved for therapy? Major trial issues may stand in the way, psychiatrist Dr. Albino Oliveira-Maia says

"Both understood phages as medicinal agents, which the rest of the medical field viewed as nonsensical."

In a new study, the RSV drug nirsevimab was 93% effective at preventing young children from being hospitalized for the respiratory infection.

A new federal order requires that U.S. dairies provide milk samples to the USDA so the agency can test the milk for bird flu prior to pasteurization.

A new laboratory study pinpoints a way H5N1 could evolve to spread from person to person.

Between 67 and 143 people in the DRC have died of an unknown, flu-like disease, officials have said.

A bacterial infection that rarely occurs in the United States hit a woman in Maryland after she cleaned her home aquarium.