Article
Immunology
Binghuai Lu, Junwen Yang, Chunyan Gao, Dong Li, Yanchao Cui, Lei Huang, Xingchun Chen, Duochun Wang, Aiping Wang, Yulei Liu, Yi Li, Zhijun Zhang, Mingyuan Jiao, Heping Xu, Yu Song, Baoqing Fu, Lili Xu, Qing Yang, Yongzhong Ning, Lijun Wang, Chunmei Bao, Guolan Luo, Hua Wu, Tongshu Yang, Chen Li, Manjuan Tang, Junrui Wang, Wenchen Guo, Ji Zeng, Wen Zhong
Summary: This study investigated the demographic and clinical features, outcomes, antibiotic susceptibility profiles, and molecular characteristics of L. monocytogenes causing listeriosis in China from 2008 to 2019. It identified a high genotypic diversity of L. monocytogenes strains and highlighted a high prevalence of ST87 and ST1 in listeriosis cases in China.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2021)
Article
Food Science & Technology
Hua Jiang, Yue Xiang, Xiaojuan He, Chencheng Li, Fuxing Lin, Jihong Shao, Yuanhong Li
Summary: This study investigated the prevalence and characterization of Cronobacter spp. in dried edible mushrooms in Jiangsu province, China. The overall prevalence of Cronobacter spp. in dried edible mushrooms was 14.8%, with high genetic diversity observed. Some Cronobacter strains showed resistance to certain antibiotics, although they were susceptible to most tested antibiotics. Most isolates showed weak biofilm formation ability. This study provides new epidemiological evidence for the presence of Cronobacter spp. in dried edible mushrooms.
JOURNAL OF FOOD SCIENCE
(2022)
Article
Food Science & Technology
Qifan Sun, Shuzhen Cai, Jianheng Cheng, Ying Zhang, Ruoqin Lin, Qinghua Ye, Liang Xue, Haiyan Zeng, Tao Lei, Shuhong Zhang, Xueting Luo, Kegang Wu, Qingping Wu, Moutong Chen, Jumei Zhang
Summary: Listeria monocytogenes was found to be present in 27.0% of samples collected in a mushroom plant, with specific strains persisting throughout different stages of production. The study suggests that critical disinfection measures are necessary to eliminate the persistence of L. monocytogenes in the facility.
Article
Food Science & Technology
Ekaterina K. Psareva, Elena A. Liskova, Irina Razheva, Yulia K. Yushina, Maria A. Grudistova, Nadezda A. Gladkova, Eugene A. Potemkin, Pavel A. Zhurilov, Elena Sokolova, Pavel A. Andriyanov, Olga L. Voronina, Denis Kolbasov, Svetlana A. Ermolaeva
Summary: The study identified high molecular diversity among Listeria monocytogenes strains isolated in Central European Russia, with significant differences observed between strains of different lineages. The closure of the Russian market for imported food in 2019-2020 had a notable impact on the types and distribution of isolated strains.
Article
Food Science & Technology
Qifan Sun, Jianheng Cheng, Ruoqin Lin, Jingyi Li, Ying Zhang, Xinwen Liang, Yue Su, Rui Pang, Liang Xue, Haiyan Zeng, Qihui Gu, Yu Ding, Qingping Wu, Moutong Chen, Jumei Zhang
Summary: Listeria monocytogenes is a globally important foodborne pathogen, and the emergence of clonal complex (CC) 87 and CC88 strains poses a threat to human health. This study developed a multiplex PCR technology that can simultaneously detect CC87 and CC88 strains, showing high specificity and sensitivity. The application of this technology in artificially contaminated milk and food samples is effective, and it is important for monitoring the prevalence of strains and evaluating the effectiveness of disinfection measures.
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
(2022)
Article
Microbiology
Pedro Vallejo, Gustavo Cilla, Maddi Lopez-Olaizola, Diego Vicente, Jose Maria Marimon
Summary: This study described the clinical features and molecular epidemiology of human listeriosis over an 11-year period in Gipuzkoa, Northern Spain. The study found that listeriosis had an average annual incidence of 1.55 per 100,000 population in non-pregnancy-associated cases, with a 1-month mortality rate of 22.2%. In pregnant women, the average incidence was 0.45 cases per 1,000 pregnancies.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Microbiology
Francis Muchaamba, Athmanya K. Eshwar, Marc J. A. Stevens, Roger Stephan, Taurai Tasara
Summary: Listeria monocytogenes, a bacterium posing challenges to public health and food safety, exhibits variations in virulence and stress resilience among different strains. Strains with different serotypes and genotypes have distinct pathogenicity and survival abilities, which contribute to food product contamination and outbreaks of listeriosis. Genetic and phenotypic differences between strains may play a crucial role in determining virulence and stress sensitivity.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Microbiology
Yu-Huan Tsai, Alexandra Moura, Zi-Qi Gu, Jui-Hsien Chang, Ying-Shu Liao, Ru-Hsiou Teng, Kuo-Yao Tseng, Dai-Ling Chang, Wei-Ren Liu, Yu-Tsung Huang, Alexandre Leclercq, Hsiu-Jung Lo, Marc Lecuit, Chien-Shun Chiou
Summary: The incidence of Listeria monocytogenes infection in Taiwan increased after mandatory notification was implemented, with clinical cases predominantly associated with three sublineages and prolonged undetected outbreaks were identified. Mandatory notification helped determine the extent of listeriosis, and continuous genomic surveillance can reduce contamination sources and disease burden.
MICROBIOLOGY SPECTRUM
(2022)
Article
Ophthalmology
Yin-Hsi Chang, Yhu-Chering Huang, Hung-Chi Chen, David H. K. Ma, Lung-Kun Yeh, Kuo-Hsuan Hung, Ching-Hsi Hsiao
Summary: This study investigated the molecular and phenotypic characteristics of methicillin-resistant Staphylococcus epidermidis (MRSE) isolated from healthy conjunctiva and ocular infections. The results showed that MRSE isolates from both sources exhibited overlapping molecular types and phenotypic traits. Specific strain ST59 showed distinctive characterizations compared to other strains.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Arkadiusz Jozef Zakrzewski, Monika Kurpas, Anna Zadernowska, Wioleta Chajecka-Wierzchowska, Maria Joao Fraqueza
Summary: This study characterized 17 L. monocytogenes strains from fish and fish-processing environments in Poland in terms of relatedness, virulence profiles, and resistance genes. The most frequent serogroups were IIa and IIb; sequence types (ST) were ST6 and ST121; and clonal complexes (CC) were CC6 and CC121. Despite differential genotypic subtypes, most strains had similar antimicrobial resistance profiles; however, some genes were located on mobile genetic elements that could be transferred to other bacteria.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Food Science & Technology
Adeoye John Kayode, Anthony Ifeanyi Okoh
Summary: We investigated the prevalence, genetic diversity, and antibiogram profiles of Listeria monocytogenes (Lm) in fruits and vegetables sourced from three District Municipalities in the Eastern Cape Province, South Africa. Lm was detected in a significant proportion of the samples tested, with high genetic diversity and multidrug resistance. This highlights the potential threat to consumers and the importance of food safety measures.
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
(2022)
Article
Food Science & Technology
Barbara Szymczak
Summary: An increasing number of atypical Listeria monocytogenes (LM) strains are being isolated from food, causing challenges in classification and testing. These atypical strains have distinct phenotypic and genotypic characteristics, and may pose a risk to human health.
Article
Microbiology
Federica D'Onofrio, Maria Schirone, Ivanka Krasteva, Manuela Tittarelli, Luigi Iannetti, Francesco Pomilio, Marina Torresi, Antonello Paparella, Nicola D'Alterio, Mirella Luciani
Summary: This study investigated the protein expression patterns of L. monocytogenes strains under stressful conditions and revealed differences in protein expression related to stress response, virulence, and pathogenesis. The findings provide valuable information about the adaptation and potential treatments of this pathogen, highlighting the importance of studying proteomic profiles and utilizing bioinformatics for pathogen analysis.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Chuncai Liang, Huan Cui, Ligong Chen, Hailong Zhang, Cheng Zhang, Juxiang Liu
Summary: This study investigated the antimicrobial resistance and prevalence of Escherichia coli (E. coli) in broiler chickens in Hebei Province. The results showed that ampicillin resistance was the highest, while meropenem resistance was the lowest. There was a serious problem of multidrug resistance in both types of broiler farms.
Article
Multidisciplinary Sciences
Ching-Fen Wu, Chia-Yu Hsu, Chi-Chung Chou, Chao-Min Wang, Szu-Wei Huang, Hung-Chih Kuo
Summary: This study investigated the antimicrobial resistance, serotypes, genotypes, and virulence factors of G. parasuis strains in Taiwan and analyzed the epidemiology of the strains. The results showed that serotypes 4 and 5 were the most prevalent in Taiwan, and a high percentage of the strains exhibited multidrug resistance. Furthermore, MLST analysis revealed a significant genetic diversity among the strains.