A novel fluorescence immunoassay for the quantitative detection of florfenicol in animal-derived foods based on ZnCdSe/ZnS quantum dot labelled antibody.

Florfenicol (F), an antimicrobial agent exclusive to veterinary use within the chloramphenicol class, is extensively applied as a broad-spectrum remedy for animal diseases. Despite its efficacy, concerns arise over potential deleterious residues in animal-derived edibles, posing threats to human health. This study pioneers an innovative approach, introducing a quantum dot fluorescence-based immunoassay (FLISA) for the meticulous detection of F residues in animal-derived foods and feeds.

Development and characterization of monoclonal antibodies against p37 protein of African swine fever virus.

African Swine Fever Virus (ASFV) is a highly contagious pathogen posing a serious threat to the global swine industry. Despite this, there is currently no effective vaccine against this virus. Within ASFV's core shell structure, p37, a product of polyprotein pp220, shares sequence similarity with SUMO-1 proteases.

Low prevalence of mcr-1 in Escherichia coli from food-producing animals and food products in China.

Background: mcr-1-positive Escherichia coli has emerged as a significant threat to human health, veterinary health, and food safety in recent years. After the prohibition of colistin as a feed additive in animal husbandry in China, a noticeable reduction in both colistin resistance and the prevalence of mcr-1 was observed in E. coli from animals and humans.

Characterization of Extensively Drug-Resistant Salmonella enterica Serovar Kentucky Sequence Type 198 Isolates from Chicken Meat Products in Xuancheng, China.

The purpose of this study was to characterize extensively drug-resistant Salmonella enterica serovar Kentucky sequence type 198 (ST198) isolates from chicken meat products. Ten . Kentucky strains obtained from chicken meat products in Xuancheng, China, carried 12 to 17 resistance genes, such as , , (A), , and , combined with mutations within (S83F and D87N) and (S80I), resulting in resistance to numerous antimicrobial agents, including the clinically important antibiotics cephalosporin, ciprofloxacin, tigecycline, and fosfomycin.

Chromosomally and Plasmid-Located in Salmonella from Animals and Food Products in China.

This study aimed to investigate the prevalence and genomic characteristics of the colistin resistance gene in Salmonella enterica in China. In total, 445 S. enterica isolates from animals and food products were screened through PCR and sequencing for the presence of .

Tigecycline-resistant ST761 carrying (X4) in a pig farm, China.

This study aimed to investigate the prevalence and characterization of (X4) in isolates from a pig farm in Shanghai, China, and to elucidate (X4) dissemination mechanism in this swine farm. Forty-nine (80.33%) strains were isolated from 61 samples from a pig farm and were screened for the presence of (X).

Nasal carriage of CTX-M-55-producing ST8369 in a healthy cohort in the city of Yangzhou, China.

This study aimed to investigate the prevalence and diversity of extended-spectrum β-lactamases (ESBL)-producing isolates from healthy individuals in a community and to elucidate their dissemination mechanism. Cefotaxime-resistant were isolated from 95 samples of healthy persons from one community in Yangzhou, China, and were tested for minimal inhibitory concentrations of 14 antimicrobial agents. The isolates were subjected to whole genome sequencing by Illumina Hiseq or PacBio single-molecule real-time sequencing.

Future hot topics and directions of green growth based on a hybrid method.

This paper aims to conduct a systematic overview of green growth literature and reveal the evolution, hot topics, as well as future directions of this field. Given the dispersion of the existing related studies, the development and evolution process of green growth have yet to be comprehensively reviewed. The qualitative review cannot objectively and quantitatively screen out important keywords, possibly leading to bias.