Health
Superbugs due to antibiotic resistance could kill 39 million people by 2050, large study finds
Resistance to antibiotics has led to one million worldwide deaths each year since 1990, for a total of 36 million.
It is expected to cause more than 39 million more fatalities by 2050 — three per minute.
That’s according to a large study led by the Global Research on Antimicrobial Resistance (GRAM) Project, a partnership between the University of Oxford and the Institute for Health Metrics and Evaluation (IHME) at the University of Washington.
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After analyzing 520 million health records, the researchers provided future estimates for 22 pathogens, 84 pathogen-drug combinations and 11 infectious syndromes across 204 countries and territories, according to a GRAM press release.
Resistance to antibiotics has led to one million worldwide deaths each year since 1990, for a total of 36 million. (iStock)
Findings from the study were published in The Lancet on Monday.
What is antimicrobial resistance?
Antimicrobial resistance (AMR) occurs when bacteria and other types of germs become stronger than the medications given to treat them, creating so-called “superbugs.”
This can make infections difficult or impossible to treat, per the U.S. Centers for Disease Control and Prevention (CDC).
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“In modern medicine, the use of antibiotics has allowed us to successfully perform organ transplants, complex surgical procedures and care for extremely preterm infants,” Jasmine Riviere Marcelin, MD, a fellow of the Infectious Diseases Society of America and infectious diseases professor at the University of Nebraska — who was not involved in the study — told Fox News Digital.
“These interventions have been successful because antibiotics have allowed us to prevent and treat infections in these critically ill patients.”
Antimicrobial resistance occurs when bacteria and other types of germs become stronger than the medications given to treat them, creating so-called “superbugs.” (iStock)
Now, antibiotic-resistant bacteria pose a “significant health risk,” she warned, because they prevent the ability to treat or prevent infections.
“Not only will our advancements in medicine be at risk, but we may find ourselves back to where we were in the pre-antibiotic era, when mortality from simple skin/soft tissue infections was significant,” Marcelin added.
“We may find ourselves back to where we were in the pre-antibiotic era.”
Maureen Tierney, MD, associate dean of clinical research and public health at Creighton University School of Medicine in Omaha, Nebraska, was also not involved in the study, but confirmed that it is “the most comprehensive attempt to determine the burden of antimicrobial resistance [in terms of] disability and death.”
“This was an enormous effort using all different sources of data in countries around the world to estimate the number of deaths caused by microorganisms resistant to several types of antibiotics,” she told Fox News Digital.
Marking key shifts
Since 1990, the infection that caused the biggest increase was MRSA (methicillin-resistant S. aureus), a type of staph bacteria that has become resistant to some antibiotics.
Annual MRSA-related deaths increased from 57,200 in 1990 to 130,000 in 2021, the study found.
Despite the overall increase in AMR-related mortality, deaths among kids younger than 5 were cut in half between 1990 and 2021.
Since 1990, the infection that caused the biggest increase was MRSA (methicillin-resistant S. aureus), a type of staph bacteria that has become resistant to some antibiotics. (iStock)
The researchers attributed this to childhood vaccination programs and wider access to drinking water, sanitation and hygiene practices.
The sharpest increase was among adults 70 and older, who saw a more than 80% uptick in AMR deaths.
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“Researchers expect these trends to continue in the coming decades, with AMR deaths among children under 5 projected to halve by 2050 globally, as deaths among people 70 years and older more than double,” the press release stated.
Geographically, deaths rose the most in western sub-Saharan Africa, tropical Latin America, high-income North America, Southeast Asia and South Asia.
Combating antimicrobial resistance
Next week, global health leaders plan to meet at the UN General Assembly in New York to discuss new strategies for addressing AMR.
Potential interventions include “infection prevention and control measures, such as new vaccines and antimicrobials, and improved access to water and sanitation — as well as deeper investments across health systems in diagnostics, training and new technologies,” the release stated.
“The most important ways to decrease the incidence of antibiotic resistance are vaccination for pneumonia, influenza, COVID, measles and other diseases,” an infectious diseases expert told Fox News Digital. (Jeff Kowalsky/AFP via Getty Images))
“The most important ways to decrease the incidence of antibiotic resistance are vaccination for pneumonia, influenza, COVID, measles and other diseases,” Tierney from Creighton University told Fox News Digital.
Tierney also calls for “antimicrobial stewardship” – which she defines as “the judicious use of antibiotics in humans, animals and farming” – as well as infection prevention practices, especially in health care facilities, and the development of new antibiotics.
“Antibiotics are a shared natural resource that we must all protect.”
While creating new drugs is one way to combat AMR, Marcelin warned that relying only on drug discovery would be “futile,” given the length of time it takes for new medications to be developed, tested and approved.
“The number of new or repurposed antibiotics in late-stage clinical development is very small, and no single antibiotic candidate claims to have activity against those bacteria resistant to all currently available drugs,” she told Fox News Digital.
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“If we can’t make new drugs easily, we can combat resistance by controlling the spread of resistant organisms, which is the principle of infection control.”
To prevent resistance, experts say that antibiotics should be prescribed and used “only when they are indicated, for the optimal duration, and at the right timing and dosing regimen.” (iStock)
To prevent resistance, Marcelin agrees that antibiotics should be prescribed and used “only when they are indicated, for the optimal duration, and at the right timing and dosing regimen.”
She added, “Antibiotics are a shared natural resource that we must all protect, so that we can continue to live in a world where we make medical advances and reduce mortality from bacterial infections.”
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Fox News Digital reached out to GRAM researchers requesting comment.
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A new injectable therapy is showing positive results in reducing melanoma throughout a five-year period.
The personalized mRNA cancer therapy, called intismeran autogene, combined with the cancer immunotherapy drug KEYTRUDA (pembrolizumab), is a collaboration between Merck and Moderna.
The results from the phase 2b KEYNOTE-942 study were presented at the American Society of Clinical Oncology (ASCO) Annual Meeting in Chicago on May 27.
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After about a five-year follow-up, the combo drug was found to reduce the risk of melanoma recurrence or death by 49% compared to pembrolizumab alone.
The researchers analyzed data from 157 patients with high-risk stage 3 and 4 melanoma whose cancer had been removed via surgery. The participants were split into two groups — one received the combo therapy and the other only received pembrolizumab, according to a press release.
The therapy was found to reduce the risk of melanoma recurrence or death by 49% compared to pembrolizumab alone after a five-year follow-up. (iStock)
The findings revealed that the combination group saw benefits that were “sustained and durable over time.”
Intismeran autogene is designed using mutations identified in a patient’s own tumor, with the intention of teaching the immune system what the cancer looks like so that it can recognize and attack it.
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According to the researchers, intismeran is “well-tolerated” with a “manageable” safety profile.
The most commonly cited side effects of the personalized mRNA vaccine plus KEYTRUDA were fatigue, injection-site pain, chills, fever and headache. The researchers reported no new long-term safety concerns and no severe vaccine-related adverse events.
The combination therapy is currently being evaluated in a phase 3 study — the final confirmation stage.
Patients with late-stage melanoma have a “significant risk” of cancer recurrence, according to an expert. (iStock)
In a Merck press release from January, Kyle Holen, MD, Moderna’s senior vice president and head of development, oncology and therapeutics, noted that this data highlights the “potential of a prolonged benefit … in patients with resected high-risk melanoma.”
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“We continue to invest in our platform in oncology because of encouraging outcomes like these, which illustrate mRNA’s potential in cancer care,” he said.
Dr. Marjorie Green, senior vice president and head of oncology, global clinical development at Merck Research Laboratories, also commented that for many patients with stage 3 or 4 melanoma, there is a “significant risk of recurrence following surgery.”
Researchers confirmed that the combination therapy is currently being evaluated in a phase 3 study. (iStock)
“As such, demonstrating the longer-term potential of intismeran autogene and KEYTRUDA to reduce the risk of recurrence for certain patients with melanoma is a meaningful milestone,” she said.
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The company cited encouraging five-year follow-up data and pointed to upcoming late-stage INTerpath trial results with Moderna in several hard-to-treat cancers.
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An accidental lab discovery has opened the door to entirely new ways of preventing the flu.
While investigating how influenza replicates, researchers discovered that different flu strains use completely different strategies to infiltrate human cells, SWNS reported.
By targeting the specific molecules the viruses rely on, scientists found that they could block them from entering new cells and halt their replication altogether.
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Researchers say these “fundamental insights” into seasonal influenza highlight a clear path toward developing better preventive medications.
“The hope is that fundamental, curiosity-based research like this helps to pave the way for novel strategies to treat and prevent influenza infections,” principal investigator Dr. Emily Bruce, from the University of Vermont’s Larner College of Medicine, said in the SWNS report.
While investigating how influenza replicates, researchers discovered that different flu strains use completely different strategies to infiltrate human cells. (iStock)
While several flu strains cause illness, H1N1 and H3N2 influenza A viruses are the most common. However, current flu tests cannot differentiate between them, and clinical treatments are identical for both.
Although vaccines and antivirals are available, Bruce noted a “dire” need for better medications to stop the virus from spreading cell to xxcell.
“You don’t get sick when a virus is in one cell,” he noted. “You get sick because a virus replicates itself and goes into many more cells.”
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The study, which was published in The Journal of Virology, originally aimed to map how viral RNA segments are transported within cells to create new viral particles.
The team used H1N1 and H3N2 viruses isolated from the nasal passages of positive patients in 2022.
Clinical treatments remain identical for both primary strains of the flu virus. (iStock)
During the investigation, the team unexpectedly stumbled upon a cellular pathway that blocked the virus from entering lung cells, SWNS reported.
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The data revealed that when a specific human protein called Rab11B was depleted, H3N2 viruses failed to enter human lung cells. H1N1 viruses were completely unaffected.
Using reverse genetics, the team mapped this defect and uncovered a brand-new, H3N2-specific role for Rab11B during viral entry.
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This discovery challenged the scientific assumption that all flu viruses enter cells the same way.
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“Viruses are like pirates from different countries hijacking someone’s ship,” Bruce said. “Different viruses, like different types of pirates, use different methods to get onboard.”
This discovery challenged the scientific assumption that all flu viruses enter cells the same way. (iStock)
“We had previously thought that all flu viruses used the same way to get into a cell, but we discovered that this is not true,” she went on. “H1N1 and H3N2 need different proteins to get in, and if you get rid of the right protein, a specific virus can’t get in.”
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While these findings identify a critical cellular pathway for viral entry, the study was conducted using isolated cells, the researchers acknowledged.
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Further research is needed to determine whether blocking the protein is safe and effective within a live, complex human respiratory system.
Bruce and the team hope to conduct further research to determine whether this Rab11B-dependency is a fundamental property of H3N2, or if it’s a trait unique to currently circulating flu strains.
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Eating processed meat like ham, sausage and bacon may be linked to a higher risk of certain types of cancer, according to new research.
While health organizations have already confirmed that processed meat can contribute to colon cancer, this study looked closer at cancers in the upper digestive tract, where the link has historically been less clear.
To understand these connections, researchers from the European Prospective Investigation into Cancer and Nutrition (EPIC), one of the world’s largest long-term nutrition and cancer cohorts, tracked the health and diets of 450,112 people across Europe for an average of 14 years.
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The study group included 131,426 men and 318,686 women, according to the study’s press release.
During the follow-up period, 876 people developed stomach cancer and 215 people developed esophageal adenocarcinoma, which is cancer of the tube connecting the mouth to the stomach.
For female participants, eating both processed meat and white meat was linked to an increased risk of developing the disease. (iStock)
Researchers tracked where the stomach cancers grew, separating them into the upper part of the stomach near the throat and the lower part of the stomach.
The researchers also sorted the tumors into two categories based on how the cancer cells appeared under a microscope: intestinal, which forms more organized structures, and diffuse, in which the cells are more scattered throughout the tissue.
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After adjusting for other lifestyle factors, the researchers found that for every extra 30 grams of processed meat a person ate per day, their overall risk of stomach cancer went up by 9%. Eating that same extra 30 grams a day was also linked to a 13% higher risk of esophageal adenocarcinoma.
A standard single slice of regular deli-sliced ham or lunch meat averages around 28 grams, according to USDA data and nutritional tracking databases.
An extra 20 grams of white meat, such as chicken and turkey, was linked to a 12% higher risk of cancer in the main body of the stomach. (iStock)
An extra 20 grams of white meat, such as chicken or turkey, was linked to a 12% higher risk of cancer in the main body of the stomach, the researchers noted.
The study also revealed differences between men and women. For male participants, only processed meat showed a clear, statistically significant link to a higher risk of stomach cancer. For female participants, however, eating both processed meat and white meat was linked to an increased risk.
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These findings align with global health benchmarks, particularly those established by the World Health Organization’s International Agency for Research on Cancer.
The agency has long classified processed meat as a known human carcinogen, primarily due to its strong, well-documented links to colorectal cancer.
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However, health organizations have also consistently pointed to a potential, yet less definitive, relationship between these meats and cancers of the stomach.
Eating 30 grams of processed meat a day, or the equivalent to one slice of ham, was linked to a 13% higher risk of esophageal adenocarcinoma. (iStock)
Further scientific investigation is needed to confirm the findings and to account for other underlying risk factors, such as certain stomach infections, which could interact with dietary habits.
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A key limitation of the study is its reliance on self-reported diets, which can sometimes lead to inaccuracies in how participants recall their meat consumption over time, the researchers noted.
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The findings were published in the International Journal of Cancer.
Fox News Digital reached out to the researchers requesting comment.
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