Salmonella News and Research

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Salmonella is actually a group of bacteria that can cause diarrheal illness in humans. They are microscopic living creatures that pass from the feces of people or animals to other people or other animals. There are many different kinds of Salmonella bacteria. Salmonella serotype Typhimurium and Salmonella serotype Enteritidis are the most common in the United States. Salmonella germs have been known to cause illness for over 100 years. They were discovered by an American scientist named Salmon, for whom they are named.

Genetically modified bacteria create protective shield against Salmonella attacks

The mammalian gut microbiome is teeming with a delicate balance of bacteria and the viruses that keep them in check, called bacteriophages, or phages.

16 Sep 2026

Gut infection leaves long-lasting immune ‘memories’ at the brain’s borders in mice

In mice, intestinal infections reshaped dural CD4+ T-cell populations and seeded the brain’s outer meningeal border with antigen-specific memory cells that persisted for months and mounted rapid recall responses to bloodborne antigens. Oral priming was associated with reduced Salmonella spread to the brain and modest cross-protection in an engineered shared-antigen Candida model, although the researchers could not definitively prove that dural CD4+ T cells alone caused the protection.

9 Sep 2026

Study uncovers bacterial weakness during flagellum construction

New research from Indiana University has uncovered a previously unknown vulnerability in how bacteria build the whip-like tails they use to move.

8 Sep 2026

Harvard scientists discover entirely new gene regulation system in mammals

For decades, scientists have understood that each of the roughly 20,000 genes in the human body carries the instructions for a single kind of protein.

2 Sep 2026

Natural gut molecule could strengthen chickens' immune response against bacterial infections

A naturally occurring gut molecule that could strengthen chickens' immune response against a wide range of bacterial infections, has been identified by University of Bristol-led research.

12 Aug 2026

Machine learning predicts pathogen risks in drinking water sources

Safe drinking water depends not only on treatment, but also on knowing when harmful microorganisms may be present in source waters.

7 Aug 2026

Pork supply chains may be shaping the global spread of drug-resistant Salmonella

Researchers linked 129,136 global human and swine Salmonella genomes with sampling from a Guangdong pork supply chain to examine how downstream stages relate to antimicrobial resistance. The study suggests slaughterhouse and retail interfaces may concentrate S. 4,[5],12:i:- ST34, resistant strains, and mobile resistance elements, supporting broader One Health surveillance beyond farms.

30 Jul 2026

New bacterial control strategy helps revive failing last-line antibiotics

Antimicrobial resistance is one of the world's most alarming public health challenges, because the multidrug-resistant (MDR) gram-negative bacteria increasingly render even last-line antibiotics ineffective, leading to substantially higher mortality rates.

23 Jul 2026

Gut immune cells help prevent severe salmonella infections

Widely recognized as the face of food poisoning, salmonella bacteria lurk in raw meat and poultry, on pets and in unpasteurized dairy products.

7 Jul 2026

Foodborne threats demand stronger pandemic planning, review says

A Perspective review in npj Science of Food argues that pandemics can weaken food safety systems even when the pathogen is not foodborne. The authors call for One Health planning that integrates food safety into pandemic preparedness, surveillance, laboratory capacity, workforce readiness, and regulation.

2 Jul 2026

New discovery sheds light on how the human body controls Salmonella infections

Salmonella, an infection that causes diarrhea, fever, and abdominal pain, is the most common form of bacterial food poisoning in the U.S., sickening more than a million people each year.

26 Jun 2026

Microbes trigger cell death to boost cancer immunotherapy effectiveness

Traditional cancer treatments like chemotherapy and radiotherapy can induce immunogenic cell death (ICD), but their efficacy is often limited by drug resistance, severe off-target toxicity, and immune-related adverse events.

24 Jun 2026

Breast milk nutrient boosts long-term immune system development

Trans-vaccenic acid (TVA), the most abundant trans fatty acid found in human breast milk, helps boost immune system development and has long-lasting effects on immune system health in mice, according to a new study by researchers from the University of Chicago.

18 Jun 2026

AI could help food systems detect pathogens, fraud, and contamination faster

A systematic review of 161 peer-reviewed publications found that AI research in food safety has expanded rapidly, rising from one study in 2012 to 46 in 2023. The review shows that machine learning and deep learning are being studied for pathogen detection, chemical contamination prediction, food fraud screening, outbreak surveillance, and regulatory decision-making, but data gaps, class imbalance, privacy limits, and model interpretability remain major barriers.

15 Jun 2026

Researchers discover 45 new toxins produced by Salmonella bacteria

Researchers at the University of São Paulo (USP) in Brazil have discovered 45 new toxins produced by Salmonella bacteria, some of which are associated with foodborne infections.

11 Jun 2026

Scientists discover new intracellular immune defense against infections

When we think of the immune system, most people imagine white blood cells putting up a fight against invading germs within our bloodstream.

4 Jun 2026

EU-funded project launches digital campaign to explain climate-driven food safety threats

To mark World Food Safety Day on 7 June, the EU-funded HOLiFOOD project is launching a digital campaign with six European influencers to help consumers better understand how climate change may affect food safety, and how science can support earlier detection and prevention of emerging risks.

4 Jun 2026

New antibiotic kills drug-resistant bacteria by targeting a previously unknown vulnerability

Researchers at McMaster University have discovered a new antibiotic that kills some of the world's most dangerous and drug-resistant bacteria - and does so by targeting a previously unknown vulnerability, opening the door to an entirely new class of treatments.

3 Jun 2026

Engineered Salmonella delivers cancer-fighting viruses to deep tumors

Researchers at the University of Massachusetts Amherst have designed non-toxic Salmonella bacteria to deliver viruses that are safe to humans but potent against liver and pancreatic cancer tumors - two cancers with an extremely poor prognosis.

3 Jun 2026

Rattlesnakes show higher vulnerability to fungal and parasitic infections

Snakes are threatened with extinction in many places around the globe. Disease, often caused by parasites or fungi, is thought to be one of the key factors alongside habitat destruction.

26 May 2026