Drug-Resistant Bacteria Spread Across Europe by 2025
Researchers identified a multidrug-resistant Campylobacter strain circulating in human and poultry populations.
Updated on Oct. 8, 2026 in Diseases — General
Live Poll
Do you trust current national surveillance to track antibiotic-resistant bacteria in the food supply?
A retrospective study covering data through December 2025 identified the multidrug-resistant bacteria Campylobacter coli ST10042 circulating across nine European nations. The analysis linked human, environmental, and food-derived isolates through genomic sequencing.
Why it matters
The spread of multidrug-resistant strains complicates the treatment of foodborne infections, as resistance to common antibiotics limits therapeutic options. This study highlights the importance of surveillance in tracking how resistant bacteria move through food systems.
Researchers analyzed 217 Campylobacter coli ST10042 isolates using whole genome sequencing between August 2018 and December 2025. Findings showed uniform resistance in 98 Portuguese samples to ciprofloxacin, tetracycline, and ampicillin.
The details
The study utilized whole genome sequencing to map the genomic clustering of the bacteria across national borders. Antimicrobial susceptibility testing revealed that variations in the porA gene directly influenced the pathogen's resistance to specific antibiotics, including amoxicillin-clavulanic acid and ertapenem. The research emphasizes a high degree of overlap between human clinical samples and poultry-derived isolates.
Timeline
Collection of the study isolates began in August 2018.
The prevalence of ST10042 peaked as the top Campylobacter coli type in Portugal between 2021 and 2025.
The study concluded its collection period in December 2025.
Health Landscape
This research contributes to the global tracking of antimicrobial resistance within the food supply chain. It provides critical genomic data that sits alongside institutional monitoring programs designed to curb the spread of resistant zoonotic pathogens.
This study reinforces the importance of food safety practices, as the identified strain was largely linked to poultry sources. If you experience persistent gastrointestinal symptoms, it is worth discussing your recent food history and any international travel with your physician.
The takeaway
The identification of this multidrug-resistant strain underscores the necessity of genomic monitoring in tracking foodborne illness. Practice standard food safety, such as proper cooking temperatures, and consult a doctor if you suspect an infection that does not respond to initial treatment.
Further reading
For broader context on how pathogens are monitored, visit our Diseases — General section.
Source note: This article includes information reported by Food-safety.
Live Poll
Do you trust current national surveillance to track antibiotic-resistant bacteria in the food supply?
