A new study from the University of Pennsylvania reveals how some Salmonella bacteria are able to evade our immune systems, allowing them to cause a systemic infection. The researchers — led by Igor Brodsky, an assistant professor of pathobiology at the School of Veterinary Medicine — hypothesized that Salmonella might have some way of avoiding the activation of inflammasomes, a complex of proteins that detects pathogens and releases signaling molecules to recruit other elements of the immune system to fight them off. They studied strains of Salmonella with a mutated gene responsible for encoding an enzyme called aconitase and found that this mutation led to a highly activated inflammasome. The researchers also infected mice with this mutated Salmonella, and the animals cleared the infection. Members of the team think that normal aconitase might do the opposite — inhibit the inflammasome and promote systemic Salmonella virulence. Brodsky is also working with his colleagues to develop a vaccine for chickens to protect them against systemic Salmonella infections. This work may incorporate an aconitase mutant. “We get Salmonella from chickens that are chronically infected,” Brodsky said, “so if you could prevent or limit chronic infection of chickens, that would be a nice way to limit Salmonella in the food supply.” The inflammasome studywas recently published in the Journal of Experimental Medicine.
The News Desk team at Food Safety News covers breaking developments, regulatory updates, recalls, and key topics shaping food safety today. These articles are produced collaboratively by our editorial staff.
Scientists have called for toxoplasmosis to be listed as a neglected tropical disease by the World Health Organization (WHO).
The Toxoplasma parasite can cause ocular toxoplasmosis, an eye infection that
An analysis of Listeria in Switzerland covering six years has revealed several outbreaks and sporadic cases connected to international incidents.
Researchers collected 335 Listeria monocytogenes isolates from cases of listeriosis
Scientists have been unable to pinpoint the route of contamination in a hepatitis A outbreak traced to blueberries.
Twenty-four patients in the Netherlands became ill from November 2024 to
The cost of food fraud in the United Kingdom could be as much as £2 billion ($2.7 billion) per year, according to researchers.
Research from the University of Portsmouth
CDC lists the investigation status as open and FDA lists it as ongoing. Case counts and recall lists in this report reflect the federal record as of Aug. 20, 2026.
Dreyer’s Grand Ice Cream Inc. is recalling select flavors of Outshine Fruit Bars because of consumer complaints about contamination with glass.
Products affected include Outshine Strawberry, Watermelon, Grape, Tangerine
Salata Dressings of Houston, TX, is recalling its Jalapeno Avocado Dressing because it has the potential to be contaminated with Salmonella.
The recalled products were distributed in Texas HEB grocery
Grand Central Bakery of Seattle, WA, is recalling loaves of Potato Sourdough because they may contain the presence of pieces of metal.
The following products are subject to recall and
