A new study by the American Stroke Association found that the risk of stroke in adults with COVID-19 between the ages of 65 to 74 was highest the first three days after diagnosis. Additionally, investigators at the National Institutes of Allergy and Infectious Diseases’ Vaccine Research Center ran tests on primates and found that updating COVID-19 vaccines to focus on the Omicron variant may not provide much benefit.

The U.S. Food and Drug Administration placed a clinical hold on Larimar Therapeutics’ lead Friedreich’s ataxia (FA) asset, CTI-1601, after the company reported deaths in the highest dose levels of a nonhuman primate toxicology study.

Nine great apes at the San Diego Zoo – four orangutans and five bonobos – made veterinary history in recent weeks as the world’s first non-human primates known to be vaccinated against Covid-19, zoo officials said.

Researchers from Aarhus University in Denmark published research indicating that Parkinson’s disease is actually two types of the disease.