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A previously "hidden" subtype of Multiple Sclerosis (MS)—a condition that affects the brain and spinal cord—has been uncovered. The distinct subtype exhibits "significant cognitive deficits with minimal motor impairment," as established in new research led by King's College London. This MS subtype may often go undetected and untreated due to the lack of visible impairment it causes. However, the researchers present a new online assessment tool that's accessible and effective at scale. (Millington, 9/3)

People who consumed the highest levels of certain artificial sweeteners — equivalent to just one diet soda a day — saw a significant decline in their ability to remember and recall words when compared to people who consumed the lowest levels, a new study found. (LaMotte, 9/3)

Federal health officials are warning that certain lots of raw cat food may be contaminated with H5N1 bird flu after a pet cat in San Francisco that ate the food became infected with the virus and had to be euthanized. The U.S. Food and Drug Administration said Wednesday that two lots of RAWR Raw Cat Food Chicken Eats tested positive for the virus. Analysis by San Francisco health department officials showed that the same strain of the H5N1 virus was present in the pet food and in the cat that died. (Aleccia, 9/4)

Marking the first H5N1 avian flu detection at a US commercial poultry farm since early July, the US Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) on August 28 confirmed an outbreak at a South Dakota turkey farm. The facility in Faulk County has 55,400 birds. The last detection at a commercial farm occurred in early July at a game bird facility in Lancaster County, Pennsylvania. (Schnirring, 9/2)

In a weekly update, the US Centers for Disease Control and Prevention (CDC) today reported 23 more measles cases, lifting the country’s total to 1,431, the most since the country reached elimination status in 2000. For the first time, health officials divided out the cases confirmed in international visitors, which account for 18 of the national cases. The number of outbreaks remained the same, at 35, double the number for 2024. So far, 86% of cases are linked to outbreaks, compared to 69% last year. (Schnirring, 9/3)

In Wisconsin, health officials in Oconto County have confirmed 9 more measles cases, raising the state's outbreak total to 23. The outbreak in Oconto County, located in northeastern Wisconsin, began in early August. The Wisconsin Department of Health Services (WDHS) said in an August 29 update that two people have been hospitalized. (Schnirring, 9/2)