Alarming Levels of Antimicrobial-Resistant E. Coli Detected in Kerala's Retail Chicken
A recent study conducted by researchers at Kerala Veterinary University has uncovered a significant public health concern regarding retail chicken meat in the state. The investigation revealed a strong presence of antimicrobial-resistant (AMR) Escherichia coli (E. coli) in chicken samples collected from six districts across Kerala, highlighting urgent food safety issues.
Study Details and Key Findings
The cross-sectional study, carried out from 2019 to 2023, involved collecting 600 retail chicken samples, each weighing 250 grams and comprising portions of the neck, breast, and thigh. These samples were sourced from Kozhikode, Palakkad, Thrissur, Ernakulam, Kollam, and Pathanamthitta districts. The results showed a 54.17% prevalence of E. coli, with 8% of the isolates carrying virulence genes for typical enteropathogenic E. coli (EPEC), which can cause severe gastrointestinal infections.
Multidrug resistance was detected in 49.28% of the isolates, indicating that many of these bacteria are resistant to multiple antibiotics, making infections harder to treat. Assistant Professor Binsy Mathew from the College of Veterinary Sciences in Mannuthy emphasized the gravity of the situation, noting that changing cooking methods may exacerbate the risk. "When it is cooked at high heat, some of the inside meat does not cook enough to kill the microbes. Hence, it is safer to eat when it is fully cooked at high temperatures and using the various spices that are part of our cuisine," she explained.
Consumer Practices and Safety Recommendations
Kerala, as one of India's leading meat-consuming states with approximately 70% of the population enjoying non-vegetarian meals, particularly during festivals, faces heightened risks due to common purchasing habits. Chicken is a popular choice due to its versatility and fewer religious and cultural taboos. However, the study points out that consumers often prefer buying from wet markets, where live birds are slaughtered on-site, creating a false sense of security compared to frozen meat from organized sectors.
Mathew advised extra caution during food preparation: "Even while cleaning it at home before cooking, people should take care to ensure that the fluid from the chicken does not spill onto the other vessels, which could lead to the spread of these microbes into other foods." The slaughter and handling practices in retail shops vary widely in terms of sanitation, increasing the risk of cross-contamination and higher loads of gut-colonizing bacteria in raw chicken.
Broader Implications and Call to Action
Chicken has been commonly implicated as a source of many foodborne pathogens, including Salmonella spp., Campylobacter spp., and E. coli. The study underscores an urgent need for:
- Robust surveillance systems to monitor antimicrobial resistance in poultry.
- Improved sanitary practices in retail poultry outlets to reduce contamination.
- Stringent regulations on antibiotic use in poultry rearing to curb the spread of resistant pathogens through the food chain.
These measures are critical to protecting public health, especially in a state with high meat consumption rates. The findings serve as a stark reminder for consumers to adopt safer cooking and handling practices to mitigate the risks associated with antimicrobial-resistant bacteria in their food.
