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https://www.readbyqxmd.com/read/28207307/nontyphoidal-salmonella-gastroenteritis-in-baoshan-shanghai-china-2010-to-2014-an-etiological-surveillance-and-case-control-study
#1
Xingtang Yang, Kai Jin, Fan Yang, Guoping Yuan, Wenbin Liu, Lunhui Xiang, Zhenqiang Wu, Zixiong Li, Jianying Mao, Junqing Shen, Nelson Lombe, Hemitério Zandamela, Lucrece Hazoume, Xiaomei Hou, Yibo Ding, Guangwen Cao
Nontyphoidal Salmonella (NTS) gastroenteritis is a widespread global foodborne disease. To identify the epidemiologic characteristics, sources of food contamination, and risk factors of NTS gastroenteritis, epidemiologic data and stool specimens of diarrheal patients were collected from sentinel hospitals in Baoshan, Shanghai, People's Republic of China, between 2010 and 2014. Food products from nearby farmers' markets and animal feces from live poultry markets and livestock farms were sampled to identify the pathogen; a case-control study was conducted to characterize risk factors of NTS gastroenteritis...
February 16, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28194914/genetic-diversity-and-antimicrobial-resistance-profiles-of-campylobacter-coli-and-campylobacter-jejuni-isolated-from-broiler-chicken-in-farms-and-at-slaughter-in-central-italy
#2
S Pergola, M P Franciosini, F Comitini, M Ciani, S De Luca, S Bellucci, L Menchetti, P Casagrande Proietti
AIMS: Genetic diversity and antimicrobial resistance of C. coli and C. jejuni were investigated along the broiler chicken production chain in central Italy. METHODS AND RESULTS: Campylobacter spp. isolated from cloacal swabs in farms (n = 116) and from neck skin of chilled and eviscerated carcasses at slaughter (n = 24) were identified as C. coli (n = 99) and C. jejuni (n = 41) by multiplex PCR. Characterisation by s-AFLP revealed a specific genotype of Campylobacter for each farm...
February 14, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28192047/wild-birds-a-source-of-reticuloendotheliosis-virus-infection-for-the-endangered-attwater-s-prairie-chicken-tympanuchus-cupido-attwateri
#3
Pamela J Ferro, Michael E Morrow, Joseph P Flanagan, Brent Ortego, Rebecca E Chester, James M Mueller, Blanca Lupiani
Reticuloendotheliosis virus (REV) infects a wide range of avian species. Since 1998, when it was first reported in a captive flock of the endangered Attwater's Prairie-chicken ( Tympanuchus cupido attwateri; APC), REV has plagued APC recovery efforts. While REV frequently occurs in captive bird flocks throughout the world, including commercial poultry, the reservoir for initial infection of flocks is poorly understood. From 2008-2016, 412 blood samples and 216 liver samples collected from 32 species of birds on or near Attwater Prairie Chicken National Wildlife Refuge in Colorado County, Texas, US, and 89 blood samples obtained from a Texas game farm that provides thousands of Northern Bobwhites ( Colinus virginianus ) and Ring-necked Pheasants ( Phasianus colchicus ) for hunting throughout Texas, were tested for REV by real-time PCR...
February 13, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28179143/how-s-the-flu-getting-through-landscape-genetics-suggests-both-humans-and-birds-spread-h5n1-in-egypt
#4
Sean G Young, Margaret Carrel, Andrew Kitchen, George P Malanson, James Tamerius, Mohamad Ali, Ghazi Kayali
First introduced to Egypt in 2006, H5N1 highly pathogenic avian influenza has resulted in the death of millions of birds and caused over 350 infections and at least 117 deaths in humans. After a decade of viral circulation, outbreaks continue to occur and diffusion mechanisms between poultry farms remain unclear. Using landscape genetics techniques, we identify the distance models most strongly correlated with the genetic relatedness of the viruses, suggesting the most likely methods of viral diffusion within Egyptian poultry...
February 4, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28178381/comparison-of-the-antimicrobial-and-sanitizer-resistance-of-salmonella-isolates-from-chicken-slaughter-processes-in-korea
#5
So Youn Youn, Ok Mi Jeong, Byung Kook Choi, Suk Chan Jung, Min Su Kang
Salmonella is a foodborne pathogen worldwide. Outbreaks of Salmonella are commonly associated with consumption of contaminated foods such as poultry products. Therefore, the objective of this study was to determine the occurrence, biofilm formation, antibiotic resistance, and sanitizer resistance of Salmonella enterica isolated from chicken carcasses. A total of 318 samples were collected from 15 chicken slaughterhouses in 8 provinces of Korea. They were then examined for Salmonella contamination. S. enterica isolates were tested for their susceptibilities to 15 antimicrobials by broth microdilution method...
February 8, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28173857/understanding-the-strategies-employed-to-cope-with-increased-numbers-of-aids-orphaned-children-in-families-in-rural-settings-a-case-of-mbeya-rural-district-tanzania
#6
Nelsensius Klau Fauk, Silivano Edson Mwakinyali, Sukma Putra, Lillian Mwanri
BACKGROUND: The purpose of this study was to understand the strategies employed by families that adopt Acquired Immune Deficiency Syndrome (AIDS)-orphaned children (Adoptive families) for coping with and mitigating the impact of AIDS in Mbeya Rural District, Tanzania. High numbers of AIDS-orphaned children aged below 18 years in Mbeya Region have led to increasing the burden of families caring for them. Understanding the coping strategies and impact mitigation activities employed by adoptive families is important in order to develop programmes to help them...
February 7, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28165472/comprehensive-resistome-analysis-reveals-the-prevalence-of-ndm-and-mcr-1-in-chinese-poultry-production
#7
Yang Wang, Rongmin Zhang, Jiyun Li, Zuowei Wu, Wenjuan Yin, Stefan Schwarz, Jonathan M Tyrrell, Yongjun Zheng, Shaolin Wang, Zhangqi Shen, Zhihai Liu, Jianye Liu, Lei Lei, Mei Li, Qidi Zhang, Congming Wu, Qijing Zhang, Yongning Wu, Timothy R Walsh, Jianzhong Shen
By 2030, the global population will be 8.5 billion, placing pressure on international poultry production, of which China is a key producer(1). From April 2017, China will implement the withdrawal of colistin as a growth promoter, removing over 8,000 tonnes per year from the Chinese farming sector(2). To understand the impact of banning colistin and the epidemiology of multi-drug-resistant (MDR) Escherichia coli (using blaNDM and mcr-1 as marker genes), we sampled poultry, dogs, sewage, wild birds and flies...
February 6, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28161403/factors-affecting-the-distribution-of-haemosporidian-parasites-within-an-oceanic-island
#8
David P Padilla, Juan Carlos Illera, Catalina Gonzalez-Quevedo, Miry Villalba, David S Richardson
Understanding how different ecological and evolutionary processes influence the distribution of pathogens within the environment is important from many perspectives including wildlife epidemiology, evolutionary ecology and conservation. The simultaneous use of ecological and evolutionary frameworks can enhance our conceptual understanding of host-parasite interactions, however such studies are rare in the wild. Using samples from 12 bird species caught across all habitats existing on an oceanic island, we evaluated how environmental variables, parasite host specificity and parasite phylogenetic relationships determine the distribution and prevalence of haemosporidians (Haemoproteus, Plasmodium and Leucocytozoon) in the wild living avifauna...
February 2, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28127395/the-industrialization-of-farming-may-be-driving-virulence-evolution
#9
Carly Rozins, Troy Day
Farming practices have changed dramatically over the years. The industrialization of farming has provided parasites with an abundance of hosts and is thought to have influenced parasite evolution. For example, the parasite that causes the highly contagious poultry disease, Marek's disease, has evolved over the past 60 years into a highly virulent pathogen. It is assumed that the industrialization of the industry and vaccination have selected for more virulent strains of the virus. Here, with the use of an impulsive differential equation model, we investigate how modern broiler farm practices could independently lead to virulence evolution...
February 2017: Evolutionary Applications
https://www.readbyqxmd.com/read/28126931/complete-annotated-genome-sequences-of-three-campylobacter-jejuni-strains-isolated-from-naturally-colonized-farm-raised-chickens
#10
Michael E Taveirne, Drew T Dunham, Andrew Perault, Jessica M Beauchamp, Steven Huynh, Craig T Parker, Victor J DiRita
Campylobacter jejuni is a leading cause of bacterially derived foodborne illness. Human illness is commonly associated with the handling and consumption of contaminated poultry products. Three C. jejuni strains were isolated from cecal contents of three different naturally colonized farm-raised chickens. The complete genomes of these three isolates are presented here.
January 26, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28100302/fecal-virome-of-healthy-chickens-reveals-a-large-diversity-of-the-eukaryote-viral-community-including-novel-circular-single-stranded-dna-viruses
#11
Diane Lima, Samuel Paulo Cibulski, Fabrine Finkler, Thais Teixeira, Ana Paula Varela, Cristine Cerva, Márcia Loiko, Camila Scheffer, Helton Dos Santos, Fabiana Mayer, Paulo Roehe
This study is focused on the identification of the fecal virome of healthy chickens raised in high-density, export-driven poultry farms in Brazil. Following high-throughput sequencing, a total of 7,743 de novo-assembled contigs were constructed and compared with known nucleotide/amino acid sequences from the GenBank database. Analyses with BLASTx revealed that 279 contigs (4%) were related to sequences of eukaryotic viruses. Viral genome sequences (total or partial) indicative of members of recognized viral families, including Adenoviridae, Caliciviridae, Circoviridae, Parvoviridae, Picobirnaviridae, Picornaviridae and Reoviridae, were identified, some of those representing novel genotypes...
January 18, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28094204/microbial-contamination-of-drinking-water-from-risky-tubewells-situated-in-different-hydrological-regions-of-bangladesh
#12
Nepal C Dey, Mahmood Parvez, Digbijoy Dey, Ratnajit Saha, Lucky Ghose, Milan K Barua, Akramul Islam, Mushtaque R Chowdhury
This study, conducted in 40 selected upazilas covering four hydrological regions of Bangladesh, aimed at determining the risk of selected shallow tubewells (depth<30m) used for drinking purpose (n=26,229). This was based on WHO's sanitary inspection guidelines and identifying the association of sanitary inspection indicators and risk scores with microbiological contamination of shallow tubewells. The main objective of the study was to observe the seasonal and regional differences of microbial contamination and finally reaching a conclusion about safe distance between tubewells and latrines by comparing the contamination of two tubewell categories (category-1: distance ≤10m from nearest latrine; n=80 and category 2: distances 11-20m from nearest latrine; n=80) in different geographical contexts...
December 29, 2016: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28093481/phylogenetic-and-pathogenic-analysis-of-mycoplasma-synoviae-isolated-from-native-chicken-breeds-in-china
#13
Shikai Sun, Xin Lin, Junmei Liu, Zhongqiang Tian, Feng Chen, Yongchang Cao, Jianping Qin, Tingrong Luo
Mycoplasma synoviae (M. synoviae) infection leads to serious economic losses in the world every year. Between 2013 and 2014, the infectious synovitis, caused by M. synoviae infection, occurred in native chickens in China and resulted in the loss of millions of chickens in Chinese poultry farms. However, there has been no data about phylogenetic and pathogenic analysis of Chinese M. synoviae isolates. In this study, a total of 110 M. synoviae strains were isolated from M. synoviae infected chickens. The isolates identified in the present study were classified into a new distinct subgroup based on analysis of the 5'-end vlhA sequences, tentatively termed the K group...
January 16, 2017: Poultry Science
https://www.readbyqxmd.com/read/28086751/quantifying-predictors-for-the-spatial-diffusion-of-avian-influenza-virus-in-china
#14
Lu Lu, Andrew J Leigh Brown, Samantha J Lycett
BACKGROUND: Avian influenza virus (AIV) causes both severe outbreaks and endemic disease among poultry and has caused sporadic human infections in Asia, furthermore the routes of transmission in avian species between geographic regions can be numerous and complex. Using nucleotide sequences from the internal protein coding segments of AIV, we performed a Bayesian phylogeographic study to uncover regional routes of transmission and factors predictive of the rate of viral diffusion within China...
January 13, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28068343/the-fleas-siphonaptera-in-iran-diversity-host-range-and-medical-importance
#15
Naseh Maleki-Ravasan, Samaneh Solhjouy-Fard, Jean-Claude Beaucournu, Anne Laudisoit, Ehsan Mostafavi
BACKGROUND: Flea-borne diseases have a wide distribution in the world. Studies on the identity, abundance, distribution and seasonality of the potential vectors of pathogenic agents (e.g. Yersinia pestis, Francisella tularensis, and Rickettsia felis) are necessary tools for controlling and preventing such diseases outbreaks. The improvements of diagnostic tools are partly responsible for an easier detection of otherwise unnoticed agents in the ectoparasitic fauna and as such a good taxonomical knowledge of the potential vectors is crucial...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28061999/newcastle-disease-virus-from-domestic-mink-china-2014
#16
Panpan Zhao, Lingshuang Sun, Xiao Sun, Siwen Li, Wen Zhang, Laura A Pulscher, Hongliang Chai, Mingwei Xing
Newcastle disease virus (NDV) is a pathogen that most often infects poultry species. In investigating a 2014 outbreak of encephalitis and death among farmed mink (Mustela vison), we found pathological and later experimental evidence that NDV can infect and cause severe encephalitic and pneumonic disease in these animals. Our findings confirm the host range of NDV.
January 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28049430/spread-of-avian-pathogenic-escherichia-coli-st117-o78-h4-in-nordic-broiler-production
#17
Troels Ronco, Marc Stegger, Rikke Heidemann Olsen, Camilla Sekse, Anne Bang Nordstoga, Tarja Pohjanvirta, Berit Lilje, Ulrike Lyhs, Paal Skytt Andersen, Karl Pedersen
BACKGROUND: Escherichia coli infections known as colibacillosis constitute a considerable challenge to poultry farmers worldwide, in terms of decreased animal welfare and production economy. Colibacillosis is caused by avian pathogenic E. coli (APEC). APEC strains are extraintestinal pathogenic E. coli and have in general been characterized as being a genetically diverse population. In the Nordic countries, poultry farmers depend on import of Swedish broiler breeders which are part of a breeding pyramid...
January 3, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28043390/eimeria-species-occurrence-varies-between-geographic-regions-and-poultry-production-systems-and-may-influence-parasite-genetic-diversity
#18
B Chengat Prakashbabu, V Thenmozhi, G Limon, K Kundu, S Kumar, R Garg, E L Clark, A S R Srinivasa Rao, D G Raj, M Raman, P S Banerjee, F M Tomley, J Guitian, D P Blake
Coccidiosis is one of the biggest challenges faced by the global poultry industry. Recent studies have highlighted the ubiquitous distribution of all Eimeria species which can cause this disease in chickens, but intriguingly revealed a regional divide in genetic diversity and population structure for at least one species, Eimeria tenella. The drivers associated with such distinct geographic variation are unclear, but may impact on the occurrence and extent of resistance to anticoccidial drugs and future subunit vaccines...
January 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28043009/re-evaluation-the-immune-efficacy-of-newcastle-disease-virus-vaccine-in-commercial-laying-chickens
#19
Qingsong Han, Xiaolong Gao, Pengpeng Wu, Sa Xiao, Xinglong Wang, Peng Liu, Lina Tong, Huafang Hao, Shuxia Zhang, Ruyi Dang, Zengqi Yang
Newcastle disease virus (NDV) infection causes serious problems in laying chickens, like reducing egg production, increasing rate of abnormal eggs in spite of strict vaccination in layer farms program. A new evaluation system is needed to show complete protection of the immunization in laying chickens based on the egg-laying performance, rather than clinical signs of the disease. In this study, laying chickens with different anti-NDV HI (hemagglutination-inhibition) antibody titer after vaccination were divided into different groups...
December 20, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/28035601/epidemiological-relationships-of-campylobacter-jejuni-strains-isolated-from-humans-and-chickens-in-south-korea
#20
Jae-Young Oh, Yong-Kuk Kwon, Bai Wei, Hyung-Kwan Jang, Suk-Kyung Lim, Cheon-Hyeon Kim, Suk-Chan Jung, Min-Su Kang
Thirty-nine human isolates of Campylobacter jejuni obtained from a national university hospital during 2007-2010 and 38 chicken isolates of C. jejuni were collected from poultry farms during 2009-2010 in South Korea were used in this study. Campylobacter genomic species and virulence-associated genes were identified by PCR. Pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) were performed to compare their genetic relationships. All isolates were highly resistant to ciprofloxacin, nalidixic acid, and tetracycline...
January 2017: Journal of Microbiology / the Microbiological Society of Korea
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