Newborn babies with vitamin D deficiency have a higher chance of later developing mental disorders such as ADHD, schizophrenia and autism, a major study has found.

The state of Missouri has won a multibillion-dollar lawsuit against China for its role in the COVID-19 pandemic after none of the defendants showed up to court.

President Donald Trump has signed an executive order banning all federal funding for "dangerous" gain-of-function research in China, Iran and other countries, and blocking all federal funding for foreign research that could cause another pandemic.

China claims COVID-19 may have originated in the United States and accuses Washington of "evading responsibility," after President Donald Trump's administration blamed a lab leak in the Asian nation.

A global study published in the American Journal of Preventive Medicine has found that for each 10 percent increase in the contribution of ultra-processed foods to total energy intake, the risk of mortality from all causes rises by 2.7 percent. In the United States alone, that’s more than 124,000 preventable deaths each year.

Uganda has declared an end to the country's latest outbreak of Ebola, three months after authorities confirmed cases of the highly infectious and often fatal viral hemorrhagic infection in the capital Kampala.

United States Health and Human Services Secretary Robert F. Kennedy Jr. is considering pulling the national recommendation that children receive the COVID-19 vaccine, according to a new report.

Childhood exposure to a toxin produced by bacteria in the bowel may be contributing to the rise of colorectal cancer in under-50s around the world, researchers say.