Health
High levels of resistant bacteria found in uncooked meats and raw dog food: ‘Red flag’
High levels of E. coli were found in uncooked meats and raw dog food sold in grocery stores in the U.K., according to research presented last week at the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) Global Congress in Barcelona.
Researchers from the University of Bristol examined 58 samples of raw beef, chicken, pork and lamb sold at grocery stores in the U.K., along with 15 samples of raw dog food sold at “specialty pet stores,” according to a press release.
Eighty-one percent of the meat samples and 87% of the dog food samples were found to contain E. coli (Escherichia coli) that was resistant to antibiotics.
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The raw chicken had the highest levels of the resistant intestinal bacteria.
“E. coli is an intestinal bacteria that may propagate in cows and chickens used for meat, especially when they are raised in squalor or close together,” Dr. Marc Siegel, clinical professor of medicine at NYU Langone Medical Center and a Fox News medical contributor, told Fox News Digital.
High levels of E. coli were found in uncooked meats and raw dog food sold in grocery stores, according to research presented last week at the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) Global Congress in Barcelona. (iStock)
“Since poultry and meat cows are often fed antibiotics to help them grow and to ward off infections, this helps to breed resistant strains, which emerge amid antibiotic overuse.”
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Siegel was not involved in the study.
“This study confirms that uncooked meat carries multiple resistant E. coli, commonly including resistance to critically important antibiotics important for human health,” the study authors said in a press release from ESCMID.
“E. coli is an intestinal bacteria that may propagate in cows and chickens used for meat, especially when they are raised in squalor or close together.” (iStock)
If ingested, the bacteria could colonize the intestines and cause resistant infections, according to study author Matthew B. Avison, a professor at the School of Cellular & Molecular Medicine, University of Bristol.
“They can sit in your gut for years without causing sickness, and in some cases the bacteria will cause different types of disease later on, including urinary tract infections and bloodstream infections that can kill,” Avison told Fox News Digital.
“Infections with resistant bacteria are more difficult to treat and so are more likely to get worse.”
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Uncooked meat sold to be eaten by people after cooking is “commonly contaminated” with antibiotic-resistant E. coli, Avison noted.
The study results weren’t surprising, he said, as there have been “numerous reports” of antibiotic-resistant bacteria in uncooked meat and some studies showing this in raw dog food.
“In some cases, the bacteria will cause different types of disease later on, including urinary tract infections and bloodstream infections.”
“People often believe that because raw dog food is sold frozen, the freezing kills the bacteria, but we have shown that it does not,” Avison told Fox News Digital.
“There were just as many samples of chicken-based raw dog food contaminated with resistant E. coli than there were samples of raw chicken meat. If you feed your dog raw meat, therefore, you are likely feeding it antibiotic resistant E. coli.”
These findings explain why researchers previously found a strong link between feeding dogs raw meat and the dogs excreting resistant E. coli in their feces, Avison noted.
“People often believe that because raw dog food is sold frozen, that freezing kills the bacteria on it, but we have shown that it does not,” a researcher told Fox News Digital. (iStock)
Most people are not aware of the risk of these antibiotic-resistant pathogens, the researchers stated in the release.
They emphasized the importance of cooking meat thoroughly before eating, and using “appropriate hygiene practices” while preparing it.
“Cooking the meat properly will kill those bacteria,” Avison advised.
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“Treat all raw meat as if it were contaminated with antibiotic-resistant bacteria and assume dogs fed raw meat will be excreting resistant bacteria,” he went on.
“Use appropriate hand-washing and general hygiene practices to minimize the risk that you and other people will accidentally ingest these bacteria.”
“If you feed your dog raw meat, you are likely feeding it antibiotic resistant E. coli.”
Dog owners who feed raw meat to their pets should dispose of the animals’ waste hygienically, Avison said.
“Don’t let your dog lick your face or share your bed, and wash your hands after petting it,” he recommended. “These are all common sense practices anyway, but even more important if you raw-feed your dog.”
Researchers emphasized the importance of cooking meat thoroughly before eating, and using “appropriate hygiene practices” while preparing it. (iStock)
“And, of course, treat raw dog food as if it were any raw meat, in terms of hygiene and cleaning practices.”
The study raises a “red flag,” Siegel said, underscoring the importance of making sure that poultry and meat is fully cooked prior to human consumption, and that dog food is also cooked.
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Andre Delattre, chief operating officer of Public Interest Research Groups (PIRG) in Washington, D.C., said the study “underscores the importance of ending the practice of routine use of antibiotics in animal agriculture.”
“Use appropriate hand-washing and general hygiene practices to minimize the risk that you and other people will accidentally ingest these bacteria,” researchers said. (iStock)
“An inevitable byproduct of antibiotic overuse is resistance to these drugs,” he told Fox News Digital.
“Studies have also shown that meat raised without antibiotics is less likely to be contaminated with resistant bacteria.”
The University of Bristol study was published on a pre-print server and has not yet been peer-reviewed.
Fox News Digital reached out to the U.K. Food Standards Agency (FSA) and the U.S. Food and Drug Administration (FDA) for comment.
For more Health articles, visit www.foxnews.com/health.
Health
4 Mistakes People Make When Starting a GLP-1 That Can Stall Weight Loss—Plus How to Maximize Your Results
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With an aggressive new strain spreading across the country, this year’s flu season has been marked by record-high hospitalizations and reportedly intense symptoms.
As people look for ways to contain the spread, new research has found that a few simple factors can greatly reduce transmission.
Researchers from the University of Maryland Schools of Public Health and Engineering in College Park and the School of Medicine in Baltimore studied influenza spread by placing flu-positive college students in a hotel room with healthy middle-aged adult volunteers.
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The study, published in the journal PLOS Pathogens, is reportedly the first clinical trial investigating how the flu spreads from naturally infected people to uninfected people, according to a press release.
The participants, including 11 healthy volunteers, lived on a quarantined floor of a Baltimore-area hotel for two weeks. During that time, they simulated interactions, including having conversations, doing physical activities like yoga, and passing around objects like pens and tablets from infected people to the rest of the group.
New research has experts questioning how the flu spreads through airborne transmission. (iStock)
Researchers monitored the participant’s symptoms, performed daily nasal swabs, and collected saliva and blood samples to test for antibodies, the release stated.
The study also measured the “viral exposure” in the volunteers’ breathing air and ambient air in the activity room. The exhaled breath of the participants was measured by a machine called the Gesundheit II, invented by researcher Dr. Donald Milton and colleagues at Harvard T.H. Chan School of Public Health.
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At the end of the experiment, none of the healthy individuals had become infected with the flu due to a variety of factors. This included a lack of coughing, as the infected students were holding “a lot of virus in their noses” and only small amounts were “expelled into the air,” the researchers noted.
Researchers said proper ventilation was a major factor in halting flu spread in this study. (iStock)
“Our data suggests key things that increase the likelihood of flu transmission — coughing is a major one,” Dr. Jianyu Lai, post-doctoral research scientist and the study’s lead data analyst and report writer, shared in a statement.
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The other factor was ventilation and air movement, as the air in the study room was “continually mixed rapidly by a heater and dehumidifier, and so the small amounts of virus in the air were diluted,” Lai pointed out.
The researcher added that middle-aged adults are “usually less susceptible” to influenza than younger adults.
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Most researchers assume that airborne transmission is a major factor of disease spread, according to Dr. Donald Milton, professor at SPH’s Department of Global, Environmental and Occupational Health and a global infectious disease aerobiology expert.
“At this time of year, it seems like everyone is catching the flu virus, and yet our study showed no transmission,” he said in the same press release. “What does this say about how flu spreads and how to stop outbreaks?”
There have been 81,000 flu-related hospitalizations and more than 3,000 deaths in the U.S. this year so far, data shows. (iStock)
Milton, who was reportedly among the first experts to identify how to stop the spread of COVID-19, noted that findings from these types of trials are essential to updating international infection-control guidelines.
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“Being up close, face-to-face with other people indoors where the air isn’t moving much, seems to be the most risky thing — and it’s something we all tend to do a lot,” he said.
“At this time of year, it seems like everyone is catching the flu virus, and yet our study showed no transmission.”
“Our results suggest that portable air purifiers that stir up the air, as well as clean it, could be a big help,” Milton suggested. “But if you are really close and someone is coughing, the best way to stay safe is to wear a mask, especially the N95.”
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Approximately 11 million flu illnesses and about 5,000 deaths have occurred so far in the 2025-2026 influenza season, according to CDC data. A large share of the current flu cases are caused by the new influenza A subclade K variant.
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GLP-1 has become a popular buzzword in the weight-loss community — but now some are touting “GLP-3s,” claiming they are taking obesity medications to the next level.
GLP-1 (glucagon-like peptide-1) medications work by mimicking a naturally occurring hormone in the body that helps regulate blood sugar and appetite.
The informal term “GLP-3” refers to a new triple-agonist drug that targets three hormones: GLP-1, GIP (glucose-dependent insulinotropic polypeptide, another naturally occurring hormone released by the gut after eating) and glucagon receptors. The most advanced example is retatrutide by Eli Lilly, according to clinical trial outcomes.
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The New England Journal of Medicine published results from a 2023 phase 2 retatrutide trial for obesity, revealing “substantial reductions in body weight” after 48 weeks of treatment.
A 12 mg once-weekly injection led to a 24.2% weight reduction, and participants continued to drop pounds after the 48-week trial period.
GLP-1 (glucagon-like peptide-1) medications work by mimicking a naturally occurring hormone in the body that helps regulate blood sugar and appetite. (iStock)
Side effects were reportedly similar to GLP-1 medications, most commonly including gastrointestinal complications like nausea, vomiting and diarrhea. Heart rate increases were noted, depending on the dose.
How it’s different
Retatrutide mimics three natural hormones found in the body, compared to GLP-1s that simulate just one hormone, according to a report by GoodRx pharmacists.
GIP and GLP-1 hormones signal the pancreas to release insulin after eating, while slowing digestion to help initiate feelings of fullness.
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These hormones target the area of the brain that regulates appetite and influences food cravings, the report noted.
The third hormone, glucagon, speeds up metabolism and helps the body break down fat cells for energy. That hormone also tells the liver to make new sugar, which is kept in check by GIP and GLP-1 activity, preventing blood sugar spikes.
Participants in the phase 3 trial saw an average weight loss of 71.8 pounds. (iStock)
“This added metabolism boost can add to and complement GIP’s and GLP-1’s actions. And that’s why it seems to provide significant weight loss,” the GoodRx website states. “If approved, retatrutide will be the first in a new class of medications.”
Eli Lilly announced results from its phase 3 trial TRIUMPH-4 in December, testing retatrutide’s effect on weight loss and other health conditions.
“We believe retatrutide could become an important option for patients with significant weight loss needs and certain complications.”
Participants with obesity and knee arthritis who took a 12-mg dose of retatrutide saw an average weight loss of 71.8 lbs (28.7%) at 68 weeks.
“For retatrutide, the findings from TRIUMPH-4 are encouraging, and with seven additional phase 3 readouts expected in 2026, we believe retatrutide could become an important option for patients with significant weight loss needs and certain complications, including knee osteoarthritis,” a Lilly spokesperson said in a statement to Fox News Digital.
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The drug also reduced Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain scores by an average of 75.8%, marking “significant improvements” in comfort level and physical function.
More than one in eight patients reported being “completely free” from knee pain at the end of the trial, according to a press release from Lilly.
Participants with obesity and knee arthritis who took a 12-mg dose of retatrutide saw an average weight loss of 71.8 lbs (28.7%) at 68 weeks. (iStock)
Seven additional phase 3 trials for retatrutide are expected to wrap up in 2026. The drug could see FDA approval in 2027, according to GoodRx.
The Lilly spokesperson noted that there have been no studies comparing retatrutide to GLP-1 treatments due to “differences in study design and patient populations.”
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Despite limited data availability on the drug, the medication could also be applied to treat other conditions like type 2 diabetes, kidney disease, cardiovascular risk reduction and metabolic dysfunction, according to GoodRx and other experts.
Fox News senior medical analyst Dr. Marc Siegel noted that Lilly’s Zepbound and Mounjaro already target two metabolic pathways — GLP-1 and GIP — which work together to promote weight loss, reduce hunger and inflammation, improve insulin function and slow digestion.
The doctor confirmed that the new drug, with its third receptor agonist, will further decrease hunger while increasing the feeling of fullness.
More than one in eight patients reported being “completely free” from knee pain at the end of the trial. (iStock)
“The weight loss in clinical trials is even more substantial, and the most likely reason that it decreases orthopedic problems is because of the weight loss — less stress on the joints and the decreased inflammation,” Siegel added.
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The most common side effect of GLP-3s is gastrointestinal symptoms, the doctor confirmed. Rarer side effects may include pancreatitis, gallstones and heart arrhythmia.
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Philip Rabito, M.D., a specialist in endocrinology, weight loss and wellness in New York City, shared in an interview with Fox News Digital that this new class of weight-loss drugs is positioned to “approach bariatric surgery level outcomes” — although it doesn’t come without risks.
“The novel glucagon‑agonist component introduces less‑understood long‑term safety considerations, so it is imperative that patients are followed closely by healthcare professionals experienced with this class of medicines, with cautious, stepwise use, despite the impressive efficacy,” he cautioned.
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