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Veterinary Microbiology

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https://www.readbyqxmd.com/read/29784499/erratum-to-antibodies-derived-from-a-toxoid-mefa-multiepitope-fusion-antigen-show-neutralizing-activities-against-heat-labile-toxin-lt-heat-stable-toxins-sta-stb-and-shiga-toxin-2e-stx2e-of-porcine-enterotoxigenic-escherichia-coli-etec-vet-microbiol-202-2017
#1
https://www.readbyqxmd.com/read/29754947/corrigendum-to-transposon-associated-lincosamide-resistance-lnu-c-gene-identified-in-brachyspira-hyodysenteriae-st83-vet-microbiol-214-2018-51-55
#2
Silvio De Luca, Pamela Nicholson, Chiara F Magistrali, Ana B García-Martín, Lorenz Rychener, Friederike Zeeh, Joachim Frey, Vincent Perreten
No abstract text is available yet for this article.
May 10, 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778211/serological-survey-for-antibodies-against-pestiviruses-in-wyoming-domestic-sheep
#3
S Silveira, S M Falkenberg, M J Elderbrook, K S Sondgeroth, R P Dassanayake, J D Neill, J F Ridpath, C W Canal
Pestiviruses including Bovine viral diarrhea virus type 1 (BVDV-1), BVDV-2 and Border disease virus (BDV) have been reported in both sheep and cattle populations, together with the HoBi-like, an emerging group of pestiviruses. Pestivirus control programs in the United States have focused on the control of BVDV-1 and 2. The incidence of pestivirus infection in sheep in the United States and the risk of transmission between cattle and sheep populations are unknown. The aim of this study was to perform serological surveillance for pestivirus exposure in sheep from an important sheep producing state in the Unites States, Wyoming...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778210/rabbit-haemorrhagic-disease-cross-protection-and-comparative-pathogenicity-of-gi-2-rhdv2-b-and-gi-1b-rhdv-lagoviruses-in-a-challenge-trial
#4
Carlos Calvete, Manuel Mendoza, Ana Alcaraz, María P Sarto, María P Jiménez-de-Bagüéss, Antonio J Calvo, Fernando Monroy, Jorge H Calvo
European rabbits (Oryctolagus cuniculus) are severely affected by rabbit haemorrhagic disease (RHD). Caused by a lagovirus, the disease leads to losses in the rabbit industry and has implications for wildlife conservation. Past RHD outbreaks have been caused by GI.1/RHDV genotype viruses. A new virus belonging to the GI.2/RHDV2/b genotype emerged in 2010, quickly spreading and replacing the former in several countries; however, limited data are available on its pathogenicity and epidemiological factors. The present work extends these issues and evaluates cross-protection between both genotypes...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778209/ovine-mannheimia-haemolytica-isolates-from-lungs-with-and-without-pneumonic-lesions-belong-to-similar-genotypes
#5
Andrés García-Alvarez, José Francisco Fernández-Garayzábal, Fernando Chaves, Chris Pinto, Dolores Cid
This study investigated the genetic characteristics of 121 ovine Mannheimia haemolytica isolates from lungs with (n = 75) and without pneumonic lesions (n = 46) using multilocus sequence typing (MLST), virulence-associated gene typing and pulsed-field gel electrophoresis (PFGE). Twelve STs were identified with most isolates (81%) belonged to ST16, ST28 and ST8. Analysis of the M. haemolytica MLST Database indicate a wide distribution of these genotypes in small ruminants, never reported in bovine isolates...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778208/enhanced-infection-of-avian-influenza-virus-h9n2-with-infectious-laryngeotracheitis-vaccination-in-chickens
#6
Nagah Arafat, Abdelfattah H Eladl, Basma H Marghani, Mohamed A Saif, Reham A El-Shafei
Avian influenza and infectious laryngeotracheitis viruses are common causes of respiratory diseases in chickens with economical importance worldwide. In this study, we investigated the effect of experimental co-infection of avian influenza virus-H9N2 (AIV-H9N2) with infectious laryngeotracheitis virus (ILTV) live-attenuated vaccine (LAR-VAC® ) on chickens. Four experimental groups were included in this study: negative control group, AIV-H9N2 group, AIV-H9N2+LAR-VAC® group, and LAR-VAC® group. AIV-H9N2 was inoculated intranasally to challenged groups at 35 days of age...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778207/evolution-in-europe-of-african-swine-fever-genotype-ii-viruses-from-highly-to-moderately-virulent
#7
Gallardo C, Nurmoja I, Soler A, Delicado V, Simón A, Martin E, Perez C, Nieto R, Arias M
Since its arrival in the Caucasus and Russia in 2007, African swine fever virus (ASFV) has spread widely and has now affected the EU countries of Estonia, Latvia, Lithuania, Poland and, more recently, the Czech Republic and Romania. The ever-increasing evidence of seropositive wild boar in certain areas suggests that some animals may be surviving for some time or could even be recovering from the disease. This could be due to acquired immunity after the primary infection and/or the presence of related viruses of reduced virulence...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778206/occurrence-and-characterisation-of-esbl-encoding-plasmids-among-escherichia-coli-isolates-from-fresh-vegetables
#8
Christin Freitag, G B Michael, Jun Li, Kristina Kadlec, Yang Wang, Melanie Hassel, Stefan Schwarz
Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli isolates have been increasingly reported in different reservoirs. The aims of this study were to investigate the presence of ESBL-producing E. coli in fresh vegetables and to characterise their ESBL gene-carrying plasmids. Among the 245 samples from vegetables investigated during 2011-2013, seven putative ESBL-producing E. coli (salad n = 2, sprouts n = 5) were found. They were subjected to ESBL phenotypic confirmatory tests, detection/sequencing of ESBL genes, antimicrobial susceptibility testing (AST), phylotyping, XbaI-macrorestriction analysis, multilocus sequence typing and transformation...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778205/immunopathological-changes-and-apparent-recovery-from-infection-revealed-in-cattle-in-an-experimental-model-of-johne-s-disease-using-a-lyophilised-culture-of-mycobacterium-avium-subspecies-paratuberculosis
#9
Douglas J Begg, Karren M Plain, Kumudika de Silva, Ratna Gurung, Alison Gunn, Auriol C Purdie, Richard J Whittington
Johne's disease (JD) or paratuberculosis is an economically significant, chronic enteropathy of ruminants caused by Mycobacterium avium subspecies paratuberculosis (MAP). Experimental models of JD in cattle are logistically challenging due to the need for long term monitoring, because the clinical disease can take years to manifest. Three trials were undertaken, the largest involving 20 cattle exposed orally to a low dose of C strain MAP and 10 controls studied for 4.75 years. Frequent blood and faecal sampling was used to monitor immunological and infection parameters, and intestinal biopsies were performed at two time points during the subclinical disease phase...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778204/presence-of-helicobacter-and-campylobacter-species-in-faecal-samples-from-zoo-mammals
#10
C De Witte, C Lemmens, B Flahou, P De Laender, T Bouts, F Vercammen, R Ducatelle, A Smet, F Haesebrouck
Helicobacter and Campylobacter species (spp.) colonize the gastrointestinal tract of various domesticated animals. Apart from their pathogenic significance in animals, several species are of zoonotic importance as well. For most non-domesticated animal spp., however, little is known on the presence and importance of these agents. Therefore, we investigated the presence of Helicobacter and Campylobacter spp. in marine and terrestrial zoo mammals. Faecal samples of various marine and terrestrial zoo mammals were collected from 6 different zoos in Belgium...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778203/evaluation-of-the-immune-response-afforded-by-a-subunit-vaccine-candidate-against-bluetongue-virus-in-mice-and-sheep
#11
Darien Kheder Ali Mohamed, Junzheng Du, Shandian Gao, Zhancheng Tian, Guorui Zhang, Dexuan Huang, Rongsheng Du, Biao Kang, Guangyuan Liu, Jianxun Luo, Hong Yin
Bluetongue virus (BTV), a vector-borne pathogen, is the causative agent of bluetongue disease in ruminants. In view of the recent emergence of BTV in regions previously known to be free from the disease and/or specific serotypes or strains, optimization of the currently available vaccination strategies to control the spread of vector-borne bluetongue is crucial. The main objective of the current study was to develop a subunit vaccine candidate targeting BTV-16, a strain previously isolated in China from sheep with obvious clinical signs...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778202/porcine-monocyte-derived-dendritic-cells-can-be-differentially-activated-by-vesicular-stomatitis-virus-and-its-matrix-protein-mutants
#12
Guoyan Sun, Xinkui Fang, Hao Wu, Xinchu Zhou, Yong Ke, Tao Sun
Vesicular stomatitis virus (VSV) can cause serious vesicular lesions in pigs, and the matrix (M) protein is its predominant virulence factor. Dendritic cells (DCs) act as the bridge between innate and adaptive immune responses. However, the susceptibility of porcine DCs to VSV infection and the role of M protein in modulating the function of infected DCs are still poorly defined. Thus, this study aimed to determine the ability of virulent wild-type VSV(wtVSV) and two attenuated M protein variants (VSVΔM51 and VSVMT ) to induce maturation of porcine monocyte-derived DCs (MoDCs) in vitro...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778201/acclimation-strategies-in-gilts-to-control-mycoplasma-hyopneumoniae-infection
#13
REVIEW
Laura Garza-Moreno, Joaquim Segalés, Maria Pieters, Anna Romagosa, Marina Sibila
Mycoplasma hyopneumoniae (M. hyopneumoniae) is the primary causative agent of enzootic pneumonia (EP), one of the most economically important infectious disease for the swine industry worldwide. M. hyopneumoniae transmission occurs mainly by direct contact (nose-to-nose) between infected to susceptible pigs as well as from infected dams to their offspring (sow-to-piglet). Since disease severity has been correlated with M. hyopneumoniae prevalence at weaning in some studies, and gilts are considered the main bacterial shedders, an effective gilt acclimation program should help controlling M...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778200/the-nucleoside-analog-gs-441524-strongly-inhibits-feline-infectious-peritonitis-fip-virus-in-tissue-culture-and-experimental-cat-infection-studies
#14
B G Murphy, M Perron, E Murakami, K Bauer, Y Park, C Eckstrand, M Liepnieks, N C Pedersen
Feline infectious peritonitis (FIP) is a common and highly lethal coronavirus disease of domestic cats. Recent studies of diseases caused by several RNA viruses in people and other species indicate that antiviral therapy may be effective against FIP in cats. The small molecule nucleoside analog GS-441524 is a molecular precursor to a pharmacologically active nucleoside triphosphate molecule. These analogs act as an alternative substrate and RNA-chain terminator of viral RNA dependent RNA polymerase. We determined that GS-441524 was non-toxic in feline cells at concentrations as high as 100 uM and effectively inhibited FIPV replication in cultured CRFK cells and in naturally infected feline peritoneal macrophages at concentrations as low as 1 uM...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778199/disinfection-of-transboundary-animal-disease-viruses-on-surfaces-used-in-pork-packing-plants
#15
Peter W Krug, Talina Davis, Catherine O'Brien, Michael LaRocco, Luis L Rodriguez
In the event of an intentional or accidental incursion of a transboundary animal disease (TAD) virus into the US, a major concern to the meat industry would be the potential contamination of packing plants by processing infected animals. TAD agents such as foot and mouth disease virus (FMDV), African swine fever virus (ASFV) and classical swine fever virus (CSFV) are found in swine products such as blood and feces and are present in the tissues of infected animals. To test the disinfection of TAD viruses in a pork-packing environment, a previously developed disinfection assay was used to test two biocides currently used by industry sanitarians, against TAD viruses dried on industry relevant surfaces in saline or swine products...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778198/molecular-characterization-of-dermatophytes-isolated-from-cattle-in-plateau-state-nigeria
#16
James S Dalis, Haruna M Kazeem, Jacob K P Kwaga, Clara N Kwanashie, Bitrus Yakubu, Olajide A Owolodun, Anvou R Jambol
Dermatophytes from cattle were successfully characterized to species and strain levels for the first time in Nigeria. This study was undertaken to isolate and characterize dermatophytes from cattle in Plateau State, Nigeria. Two molecular techniques were utilized. The first was the use of polymerase chain reaction (PCR) to amplify the internal transcribed spacer regions of the ribosomal DNA using ITS-1 and ITS-4 as primers. This was followed by restriction fragment length polymorphism analysis of the amplified ITS regions using the enzyme MvaI to identify dermatophyte species...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778197/genetic-analysis-and-biological-characteristics-of-different-internal-gene-origin-h5n6-reassortment-avian-influenza-virus-in-china-in-2016
#17
Wenqiang Sun, Jiaxin Li, Jiao Hu, Daxiu Jiang, Chaonan Xing, Tiansong Zhan, Xiufan Liu
Clade 2.3.4.4 of H5N6 subtype Avian Influenza Viruses (AIVs) has become dominant clade in South-East Asia. So far, a total of 16 cases of human infection, including 6 deaths, have been confirmed since 2014. In this study, we systematically investigated the genetic evolution and biological characteristics of these viruses. We first carried out phylogenetic and statistical analysis of all H5N6 viruses that were downloaded from Influenza Research Database, GISAID and isolates from our lab. We found that H5N6 AIVs continued to reassort with other AIVs subtypes since 2014...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778196/vaccination-with-killed-whole-cells-of-escherichia-coli-o157-h7-hha-mutant-emulsified-with-an-adjuvant-induced-vaccine-strain-specific-serum-antibodies-and-reduced-e-coli-o157-h7-fecal-shedding-in-cattle
#18
Vijay K Sharma, Robert G Schaut, Crystal L Loving
Escherichia coli O157:H7 (O157) can cause from a mild diarrheal illness to hemorrhagic colitis and hemolytic uremic syndrome in humans. Cattle are the primary reservoir for O157 and fecal shedding of O157 by these animals is a major risk factor in contamination of cattle hides and carcasses at slaughter. Vaccination is an important strategy to reduce fecal shedding of O157 in cattle. In this study, we evaluated the immunogenicity and efficacy of an inactivated vaccine strain of O157 formulated with an adjuvant...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778195/antigenicity-characterization-of-four-representative-natural-reassortment-ibdvs-isolated-from-commercial-three-yellow-chickens-from-southern-china-reveals-different-subtypes-co-prevalent-in-the-field
#19
Guo Chen, Xiumiao He, Lin Yang, Ping Wei
The antigenic relationships between the natural reassortment field strains of infectious bursal disease virus (IBDV), and between the field strains and the vaccine strains are poorly understood. In the present study, the antigenicity of four representative natural reassortment IBDV isolates designated JS7, GD10111, NN1005 and NN1172 from southern China during the years 2005-2011 and their antigenic relationship with the most commonly used vaccine strain B87 were investigated in vivo. For this purpose, cross-challenge studies were performed on 28-day-old birds, which were 2 weeks post-vaccination by oil-emulsion vaccines (OEVs) prepared from the four field viruses and B87, respectively...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778194/pathogenicity-of-blood-orf-virus-isolates-in-the-development-of-dairy-goat-contagious-pustular-dermatitis
#20
Hong-Yu Cheng, Wei-Juan Li, Xing-Ming Li, Qin-Lei Fan, Xi-Dian Tang, Ming-Jie Liu, Wen-Tao Ma, De-Kun Chen
Contagious pustular dermatitis is an exanthematous zoonotic disease caused by the orf virus. Pandemic outbreaks of this disease cause great economic losses, while the pathogenesis of this disease still remains obscure. In this study, blood samples were collected from 628 asymptomatic goats across China for PCR-based virus detection. We detected the orf virus in the blood of asymptomatic goats. Moreover, the orf virus obtained from the blood of infected goats was infectious and induced typical symptoms of contagious pustular dermatitis after inoculation of uninfected dairy goats...
June 2018: Veterinary Microbiology
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