Salmonella vaccine for poultry contributed to rise of antibiotic-resistant bacteria

Medically Reviewed By : Dr. Kamal Kant Kohli

Published On 2022-06-04 03:45 GMT | Update On 2022-06-04 03:45 GMT

An investigation into the evolution of Salmonella bacteria infecting Brazilian poultry showed that the introduction of a Salmonella vaccine, combined with increasing antibiotic usage, led to the rise of strains that are more antibiotic-resistant, but less likely to cause disease in humans. These findings are published in the open access journal PLOS Genetics.

The researchers compared the genomes of 183 Salmonella collected from chickens in Brazil and 357 Salmonella genomes collected from humans, domestic poultry, and imported Brazilian poultry products.

They found that distinct lineages of the two main Salmonella types. These bacteria possess genes that make them resistant to three types of antibiotics. But despite their rise, these antibiotic-resistant bacteria have caused very few cases of Salmonella in humans and have not spread to domestic chickens.

Overall, these findings suggest that the use of the Salmonella vaccine, along with greater antibiotic usage, enabled the rise of drug-resistant forms of Salmonella, but that these bacteria have not led to greater numbers of food poisoning cases. Hence, it is important to evaluate theSalmonellagenomes from a range of sources.

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Dr. Nandita Mohan

Dr. Nandita Mohan is a practicing pediatric dentist with more than 5 years of clinical work experience. Along with this, she is equally interested in keeping herself up to date about the latest developments in the field of medicine and dentistry which is the driving force for her to be in association with Medical Dialogues. She also has her name attached with many publications; both national and international. She has pursued her BDS from Rajiv Gandhi University of Health Sciences, Bangalore and later went to enter her dream specialty (MDS) in the Department of Pedodontics and Preventive Dentistry from Pt. B.D. Sharma University of Health Sciences. Through all the years of experience, her core interest in learning something new has never stopped. She can be contacted at editorial@medicaldialogues.in. Contact no. 011-43720751

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Salmonella vaccine for poultry contributed to rise of antibiotic-resistant bacteria

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