Distribution and Transmission of Colistin Resistance Genes and among Nontyphoidal Salmonella Isolates in China from 2011 to 2020.

Mobile colistin resistance () genes are present mainly in plasmids and can disseminate clonally or horizontally via either plasmids or insertion sequences in different genomic locations among the . A nationwide large-scale study on prevalence and transmission in nontyphoidal Salmonella isolates is still lacking. Here, we identified 140 -positive Salmonella isolates out of 7,106 isolates from 29 provinces in China from 2011 to 2020.

New Variant of Vibrio parahaemolyticus, Sequence Type 3, Serotype O10:K4, China, 2020.

In 2020, a new serotype of Vibrio parahaemolyticus O10:K4 emerged and caused several outbreaks and sporadic cases in Guangxi, China. Phylogenetic analysis indicated that those strains are new variants of the sequence type 3 pandemic clone. The new serotype may become dominant, warranting enhanced investigations and surveillance.

Effect of Y Chromosome Microdeletions on the Pregnancy Outcome of Assisted Reproduction Technology: a Meta-analysis.

This systematic analysis aimed to summarize the effects of Y chromosome microdeletions (YCMs) on pregnancy outcomes of assisted reproductive technology (ART). This retrospective controlled meta-analysis evaluated the effect of YCMs on pregnancy outcomes of ART. Full-text retrieval was conducted in the PubMed, CBM, Web of Science, CNKI, VIP, and WANFANG databases.

Circular RNA has_circ_0000527 participates in proliferation, invasion and migration of retinoblastoma cells via miR-646/BCL-2 axis.

Retinoblastoma (RB) is one of the most common primary intraocular malignancies in children. Emerging researches have shown that circular RNAs (circRNAs) play critical roles in a variety of cancers. As a novel circRNA, the function of circ_0000527 in RB remains unknown.

Occurrence and Characterization of Cronobacter spp. in Dehydrated Rice Powder from Chinese Supermarket.

Cronobacter spp. are emerging food-borne pathogens and have been identified as causative agents of meningitis and necrotizing enterocolitis in infants. Dehydrated rice is popular with a wide range of people and it is frequently used as a substitute for infant milk powder to baby older than four months.

Temporal and Spatial Variation in the Abundance of Total and Pathogenic Vibrio parahaemolyticus in Shellfish in China.

We investigated the abundance of total and pathogenic Vibrio parahaemolyticus in shellfish sampled from four provinces in China during May 2013 and March 2014 using the most probable number-polymerase chain reaction (MPN-PCR) method. Total V. parahaemolyticus was detected in 67.

High prevalence and genetic diversity of noroviruses among children with sporadic acute gastroenteritis in Nanning City, China, 2010-2011.

A molecular epidemiological study of Norovirus (NoV) infections in children aged <5 years was conducted in the outpatient department of a hospital between January 2010 and December 2011 in Nanning City, Guangxi Zhuang Autonomous Region of China. Fecal samples were collected from 354 pediatric patients with acute gastroenteritis, and were screened for the presence of NoV with one-step real-time reverse-transcription polymerase chain reaction (RT-PCR). NoV genogroup II (GII) was detected in 28.

[Analysis of molecular features of clinical Vibrio parahaemolyticus strains in China].

Objective: To explore the phenetic and genetic features of clinical Vibrio parahaemolyticus strains from 2007-2009 in China.

Methods: A total of 135 clinical Vibrio parahaemolyticus strains, isolated from Zhejiang, Jiangsu, Sichuan, Guangxi, Liaoning Provinces during 2007 to 2009, were selected for the research. The occurrence of virulence genes thermostable direct hemolysin (tdh) and TDH-related hemolysin (trh), species-specific genes thermolabile hemolysin (tlh), toxR, VPM and gyrB, the pandemic clone gene markers(GS-PCR, PGS-PCR, orf8 and HU-α) in 135 Vibrio parahaemolyticus strains was detected by PCR.

Foodborne pathogens in retail oysters in south China.

Objective: To investigate the occurrence of important foodborne pathogens in shellstock Pacific oysters in the food markets in South China.

Methods: From July 2007 to June 2008, retail oysters were collected in different seasons from South China and analyzed for the prevalence and levels of Listeria monocytogenes, Vibrio vulnificus and Vibrio parahaemolyticus.

Results: None of L.