Article
Microbiology
Konstantin V. Kuleshov, Anastasia S. Pavlova, Elizaveta D. Shedko, Yulia V. Mikhaylova, Gabriele Margos, Sabrina Hepner, Igor V. Chebotar, Elena V. Korneenko, Alexander T. Podkolzin, Vasiliy G. Akimkin
Summary: This study reports the first three cases of mcr gene-carrying non-typhoid Salmonella isolates in Russia, with both outbreak and sporadic epidemiological backgrounds. Three colistin-resistant isolates were identified, with two carrying mcr-1.1 gene and one carrying mcr-9 gene on different plasmids.
Article
Infectious Diseases
Yaohui Xu, Xiao Zhou, Zenghai Jiang, Yaru Qi, Abdelaziz Ed-Dra, Min Yue
Summary: The study revealed that Salmonella strains isolated from chicken embryos in Henan province exhibited high resistance to ampicillin (66.67%) and sulfisoxazole (66.67%), with 67.5% of strains being multidrug resistant and 21.67% confirmed as ESBLs positive. Resistance was found to be serovar-dependent, with ESBLs positive strains showing more multi-resistance than ESBLs negative strains.
Article
Microbiology
Margarita Terentjeva, Juris Kibilds, Irena Meistere, Silva Gradovska, Laura Alksne, Madara Streikisa, Jevgenija Osmjana, Olga Valcina
Summary: This study investigated the prevalence, virulence determinants, and genetic diversity of Yersinia species isolated from meat. The results showed a higher prevalence of Y. enterocolitica in pork compared to beef, and pathogenic bioserovars were identified in pork samples. The antimicrobial resistance of Y. enterocolitica isolates was confirmed only in ampicillin. The presence of virulence genes and genetic characteristics of certain Y. enterocolitica STs confirms the importance of pork as a source of pathogenic Yersinia.
Article
Veterinary Sciences
Stephanie C. Hempstead, Catherine A. Gensler, Shivaramu Keelara, Matthew Brennan, Natalie J. Urie, Alyson M. Wiedenheft, Katherine L. Marshall, Brenda Morningstar-Shaw, Kristina Lantz, Paula J. Fedorka-Cray, Megan E. Jacob
Summary: Salmonella species are a common cause of gastrointestinal disease in goats and a leading foodborne pathogen in the United States. This study investigated the prevalence, antimicrobial resistance, biofilm production, and virulence profile of Salmonella isolates from goat feces. The results showed a low prevalence of Salmonella in goat feces, but the strains exhibited a variety of serotypes, virulence factors, and biofilm-forming abilities.
PREVENTIVE VETERINARY MEDICINE
(2022)
Article
Agriculture, Dairy & Animal Science
Tae-Sik Kim, Gang-San Kim, Joo-Sung Son, Van Dam Lai, In-Pil Mo, Hyesun Jang
Summary: The study revealed a high level of Salmonella contamination in duck farm environments in Korea. Implementation of cleaning and disinfection procedures, rodent control, and metal house walls significantly reduced the prevalence of Salmonella. Most Salmonella isolates showed antimicrobial resistance, indicating the importance of good biosecurity and hygiene practices in controlling contamination.
Article
Immunology
Christy Tabarani, Alejandro De La Hoz, Audrey Wanger, Anthony R. Flores, Cesar A. Arias
Summary: This study retrospectively observed the Salmonella infections in 110 pediatric patients under 18 years old in a large hospital network in Houston from 2016 to 2021. The results showed that the infection rate was highest among children aged 0-5 years, and bloody diarrhea was most commonly reported among children aged 0-1 years. The clinical characteristics of Salmonella infections in the pediatric population were distinct. Special consideration should be given to empiric treatment for patients who have recently returned from the Indian subcontinent.
PEDIATRIC INFECTIOUS DISEASE JOURNAL
(2023)
Article
Food Science & Technology
Yu Li, Xiaojuan Yang, Jumei Zhang, Shiyuan Yang, Shuhong Zhang, Moutong Chen, Liang Xue, Yu Ding, Haiyan Zeng, Qihui Gu, Youxiong Zhang, Xianhu Wei, Juan Wang, Qingping Wu
Summary: This study analyzed the antimicrobial resistance of 124 S. Enteritidis strains collected from retail foods in 39 cities across China, revealing a high rate of multidrug resistance and frequent resistance to nalidixic acid and ampicillin. Through PCR amplification and antibiotic susceptibility testing, it was found that these strains carried various resistance genes and integrons. Conjugation experiments and molecular characterization showed that resistance genes could be transferred to recipient strains via mobile plasmids.
Article
Food Science & Technology
Arome Ohiemi Shaibu, Emmanuel Chukwudi Okolocha, Beatty Viv Maikai, Olaolu Tosin Olufemi
Summary: The study found that most strains in sampled abattoirs in Nigeria exhibited resistance to multiple antibiotics, with cefepime, enrofloxacin, and ofloxacin showing the best efficacy. Although the overall isolation rate of Salmonella was low, it may be attributed to various factors such as hygiene practices and the existing Salmonella status of the animals.
Article
Biotechnology & Applied Microbiology
Runan Yan, Nkuchia M. M'ikanatha, Irving Nachamkin, Lauren K. Hudson, Thomas G. Denes, Jasna Kovac
Summary: The prevalence of antimicrobial resistance in Campylobacter isolates from human and meat sources in Pennsylvania was investigated. Resistance to erythromycin was confirmed in 6% of human isolates and 4% of meat isolates, while ciprofloxacin resistance was more common in human isolates. There was a good concordance between phenotypic resistance and the presence of known resistance genetic determinants.
Review
Infectious Diseases
Shian Lai, Quan Zhang, Lin Jin
Summary: Due to the abuse of antibiotics, an increasing number of drug-resistant bacterial strains have emerged, posing a serious threat to human and animal health. Antimicrobial peptides (AMPs) have proven to be one of the most effective solutions, as they exhibit low propensity for drug resistance and possess remarkable antimicrobial effects. Among them, cyclic AMPs, especially macrocyclic ones, have garnered extensive attention.
Article
Infectious Diseases
Syahidiah Syed Abu Thahir, Sakshaleni Rajendiran, Rafiza Shaharudin, Yuvaneswary Veloo
Summary: This study aimed to determine the presence of antimicrobial-resistant Salmonella species and its mobile genetic elements from soil and effluent samples of 33 randomly selected poultry farms in Selangor, Malaysia. The results showed that Salmonella spp. was detected in 38.1% (24/63) of samples, with the highest resistance to ampicillin, followed by ampicillin/sulbactam and ciprofloxacin. The most prevalent resistance genes detected include qnrS1, blaTEM-176, dfrA14, and tet(A).
Article
Microbiology
Gabriel I. Kruger, Coral Pardo-Este, Phillippi Zepeda, Jorge Olivares-Pacheco, Nicolas Galleguillos, Marcia Suarez, Juan Castro-Severyn, Luis Alvarez-Thon, Mario Tello, Jorge H. Valdes, Claudia P. Saavedra
Summary: The presence of mobile genetic elements in Salmonella from a chicken farm poses a potential risk of emerging bacteria in the food industry, contributing to increased pathogenicity and antimicrobial resistance. Salmonella isolates from different stages of the production line were identified and serotyped, with Salmonella Infantis being the most predominant serotype. Phylogenetic analyses showed that strain diversity and spread in the pipeline were serotype-independent. Salmonella Infantis isolates carried plasmids with resistance genes linked to mobile genetic elements. Antibiotic resistance genotypes were closely matched by resistance phenotypes, particularly for tetracycline, aminoglycosides, and cephalosporins. Overall, contamination in the poultry industry throughout the production line with mobile genetic elements leads to multi-drug resistant bacteria, promoting survival against antimicrobial compounds.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Zhiying Wang, Tongbo Zhu, Zhao Chen, Jianghong Meng, David J. Simpson, Michael G. Ganzle
Summary: This study identified the genetic basis of dry heat resistance in Salmonella strains, revealing key genes related to stress resistance. Six of these genes were found to increase resistance to dry heat and high pressure treatment, offering potential strategies for reducing the risk of foodborne illness in dry food products.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Infectious Diseases
Ilona Stefanska, Ewelina Kwiecien, Magdalena Kizerwetter-Swida, Dorota Chrobak-Chmiel, Magdalena Rzewuska
Summary: The increasing antimicrobial resistance (AMR) in companion-animal pathogens, specifically Streptococcus canis, is a concern for both pet treatment and public health. This study found a high prevalence of resistance genes in S. canis strains from dogs and cats, indicating a potential reservoir of resistance determinants. Resistance to tetracycline, erythromycin, and clindamycin was observed, while resistance to beta-lactams was relatively low.
Article
Agriculture, Dairy & Animal Science
Hamid Reza Sodagari, Rima D. Shrestha, Agnes Agunos, Sheryl P. Gow, Csaba Varga
Summary: The study analyzed data from 2013 to 2021 collected by the Canadian Integrated Program for Antimicrobial Resistance Surveillance (CIPARS) farm turkey surveillance program. The results showed that Salmonella isolates from turkeys in Canada exhibited high resistance to multiple antibiotics. The study highlights the need to reassess antibiotic use strategies and other production factors.