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https://www.readbyqxmd.com/read/28919674/prevalence-of-enteropathogens-and-their-antibiotic-sensitivity-pattern-in-puppies-with-hemorrhagic-gastroenteritis
#1
A Kokila Priya, M Balagangatharathilagar, D Chandrasekaran, M Parthiban, S Prathaban
AIM: Hemorrhagic gastroenteritis (HGE) ranging from mild to severe forms is commonly encountered in puppies. The aim of the study was to identify the prevalence of common enteropathogens and the antibiotic sensitivity pattern in puppies reported with HGE. MATERIALS AND METHODS: The canine HGE activity index, with little modification, was adopted to identify Grade III/severely affected puppies below 6 months of age. Fecal polymerase chain reaction (PCR) assay was employed to screen and compare the enteropathogens in puppies with hemorrhagic diarrhea and healthy control...
August 2017: Veterinary World
https://www.readbyqxmd.com/read/28895871/type-i-interferons-in-the-pathogenesis-and-treatment-of-canine-diseases
#2
REVIEW
Daniela Klotz, Wolfgang Baumgärtner, Ingo Gerhauser
Type I interferons (IFNs) such as IFN-α, IFN-β, IFN-ε, IFN-κ, and IFN-ω represent cytokines, which are deeply involved in the regulation and activation of innate and adaptive immune responses. They possess strong antiviral, antiproliferative, and immunomodulatory activities allowing their use in the therapy of different viral diseases, neoplasms, and immune-mediated disorders, respectively. Initially, treatment strategies were based on nonspecific inducers of type I IFNs, which were soon replaced by different recombinant proteins...
September 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28852158/investigation-of-a-canine-parvovirus-outbreak-using-next-generation-sequencing
#3
Jayme Parker, Molly Murphy, Karsten Hueffer, Jack Chen
Canine parvovirus (CPV) outbreaks can have a devastating effect in communities with dense dog populations. The interior region of Alaska experienced a CPV outbreak in the winter of 2016 leading to the further investigation of the virus due to reports of increased morbidity and mortality occurring at dog mushing kennels in the area. Twelve rectal-swab specimens from dogs displaying clinical signs consistent with parvoviral-associated disease were processed using next-generation sequencing (NGS) methodologies by targeting RNA transcripts, and therefore detecting only replicating virus...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28834737/immunocapture-loop-mediated-isothermal-amplification-assays-for-the-detection-of-canine-parvovirus
#4
Yu-Ling Sun, Chon-Ho Yen, Ching-Fu Tu
A loop-mediated isothermal amplification (LAMP) assay was used for rapid canine parvovirus (CPV) diagnosis. To reduce the time required and increase the sensitivity of the assay, an immunocapture (IC) technique was developed in this study to exclude the DNA extraction step in molecular diagnostic procedures for CPV. A polyclonal rabbit anti-CPV serum was produced against VP2-EpC that was cloned via DNA recombination. The polyclonal anti-VP2-EpC serum was used for virus capture to prepare microtubes. IC-LAMP was performed to amplify a specific CPV target gene sequence from the CPV viral particles that were captured on the microtubes, and the amplicons were analyzed using agarose electrophoresis or enzyme-linked immunosorbent assay (IC-LAMP-ELISA) and lateral-flow dipstick (IC-LAMP-LFD)...
August 20, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28812526/parvovirus-infection-is-associated-with-myocarditis-and-myocardial-fibrosis-in-young-dogs
#5
Jordan Ford, Laura McEndaffer, Randall Renshaw, Alex Molesan, Kathleen Kelly
Perinatal parvoviral infection causes necrotizing myocarditis in puppies, which results in acute high mortality or progressive cardiac injury. While widespread vaccination has dramatically curtailed the epidemic of canine parvoviral myocarditis, we hypothesized that canine parvovirus 2 (CPV-2) myocardial infection is an underrecognized cause of myocarditis, cardiac damage, and/or repair by fibrosis in young dogs. In this retrospective study, DNA was extracted from formalin-fixed, paraffin-embedded tissues from 40 cases and 41 control dogs under 2 years of age from 2007 to 2015...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28810858/rapid-and-sensitive-detection-of-canine-distemper-virus-by-real-time-reverse-transcription-recombinase-polymerase-amplification
#6
Jianchang Wang, Jinfeng Wang, Ruiwen Li, Libing Liu, Wanzhe Yuan
BACKGROUND: Canine distemper, caused by Canine distemper virus (CDV), is a highly contagious and fatal systemic disease in free-living and captive carnivores worldwide. Recombinase polymerase amplification (RPA), as an isothermal gene amplification technique, has been explored for the molecular detection of diverse pathogens. METHODS: A real-time reverse transcription RPA (RT-RPA) assay for the detection of canine distemper virus (CDV) using primers and exo probe targeting the CDV nucleocapsid protein gene was developed...
August 15, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28808849/a-rapid-method-for-establishment-of-a-reverse-genetics-system-for-canine-parvovirus
#7
Yongle Yu, Jun Su, Jigui Wang, Ji Xi, Yaping Mao, Qiang Hou, Xiaomei Zhang, Weiquan Liu
Canine parvovirus (CPV) is an important and highly prevalent pathogen of dogs that causes acute hemorrhagic enteritis disease. Here, we describe a rapid method for the construction and characterization of a full-length infectious clone (rCPV) of CPV. Feline kidney (F81) cells were transfected with rCPV incorporating an engineered EcoR I site that served as a genetic marker. The rescued virus was indistinguishable from that of wild-type virus in its biological properties.
August 14, 2017: Virus Genes
https://www.readbyqxmd.com/read/28733230/clostridium-perfringens-and-c-%C3%A2-difficile-in-parvovirus-positive-dogs
#8
Rodrigo Otávio Silveira Silva, Fernanda Alves Dorella, Henrique Cesar Pereira Figueiredo, Érica Azevedo Costa, Vanessa Pelicia, Bruna Letícia Devidé Ribeiro, Marcio Garcia Ribeiro, Antonio Carlos Paes, Jane Megid, Francisco Carlos Faria Lobato
The aim of this study was to investigate Clostridium difficile and Clostridium perfringens in 82 diarrheic dogs positive for canine parvovirus type 2 (CPV). Enterotoxigenic C. perfringens type A was isolated from three (3.6%) dogs. One (1.2%) strain was also positive for NetE- and NetF-encoding genes, which are commonly associated with diarrhea in dogs. Toxigenic C. difficile was isolated from one animal (1.2%), which was also positive for A/B toxins. The present study identified C. difficile and C. perfringens infection in CPV-positive dogs...
July 19, 2017: Anaerobe
https://www.readbyqxmd.com/read/28716388/identification-of-co-infection-by-rotavirus-and-parvovirus-in-dogs-with-gastroenteritis-in-mexico
#9
Ariadna Flores Ortega, José Simón Martínez-Castañeda, Linda G Bautista-Gómez, Raúl Fajardo Muñoz, Israel Quijano Hernández
This is the first report on circulating canine rotavirus in Mexico. Fifty samples from dogs with gastroenteritis were analyzed used polymerase chain reaction and reverse transcription polymerase chain reaction in order to identify parvovirus and rotavirus, respectively; 7% of dogs were infected with rotavirus exclusively, while 14% were co-infected with both rotavirus and parvovirus; clinical signs in co-infected dogs were more severe.
June 24, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28716118/evolutionary-and-genetic-analysis-of-the-vp2-gene-of-canine-parvovirus
#10
Gairu Li, Senlin Ji, Xiaofeng Zhai, Yuxiang Zhang, Jie Liu, Mengyan Zhu, Jiyong Zhou, Shuo Su
BACKGROUND: Canine parvovirus (CPV) type 2 emerged in 1978 in the USA and quickly spread among dog populations all over the world with high morbidity. Although CPV is a DNA virus, its genomic substitution rate is similar to some RNA viruses. Therefore, it is important to trace the evolution of CPV to monitor the appearance of mutations that might affect vaccine effectiveness. RESULTS: Our analysis shows that the VP2 genes of CPV isolated from 1979 to 2016 are divided into six groups: GI, GII, GIII, GIV, GV, and GVI...
July 17, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28715293/surveillance-for-antibodies-against-six-canine-viruses-in-wild-raccoons-procyon-lotor-in-japan
#11
Emiko Aoki, Takehisa Soma, Mayumi Yokoyama, Makoto Matsubayashi, Kazumi Sasai
Raccoons (Procyon lotor) are found worldwide. They are frequently seen in crowded inner cities as well as in forests or wooded areas, often living in proximity to humans and their pets. We examined sera from 100 wild raccoons in Japan for antibodies to six canine viruses with veterinary significance to assess their potential as reservoirs. We also aimed to understand the distribution of potentially infected wildlife. We found that 7% of samples were seropositive for canine distemper virus (CDV), 10% for canine parvovirus type (CPV), 2% for canine adenovirus type 1, 6% for canine adenovirus type 2, and 7% for canine coronavirus...
July 17, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28707272/first-molecular-characterization-of-canine-parvovirus-strains-in-sardinia-italy
#12
S Dei Giudici, T Cubeddu, A Giagu, G Sanna, S Rocca, A Oggiano
Canine parvovirus type 2 (CPV-2) is responsible of acute hemorrhagic gastroenteritis in young dogs. CPV-2 emerged in 1978 in the USA, but new antigenic types, CPV-2a, 2b and 2c, have completely replaced the original type. In this study, we analyzed 81 animals collected in Sardinia, Italy. The VP2 sequence analysis of 27 positive samples showed that all antigenic CPV-2 types are circulating. CPV-2b seems to be the most widespread variant, followed by CPV-2a. Furthermore, 12 CPV-2b strains displayed further amino acid substitutions and formed a separate cluster in a phylogenetic tree, indicating regional genetic variation...
July 14, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28689674/determination-of-immune-status-in-dogs-against-cpv-2-by-recombinant-protein-based-latex-agglutination-test
#13
Jobin Thomas, Mithilesh Singh, T K Goswami, Philma Glora, Soumendu Chakravarti, Vishal Chander, Vikramaditya Upmanyu, Suman Verma, Chhavi Sharma, K Mahendran
Canine parvoviral enteritis is a highly contagious viral illness caused by canine parvovirus-2 (CPV-2) which affects puppies of mainly 6-20 weeks of age. Vaccination is pivotal in preventing and controlling CPV-2 infection. Determination of antibody status is a critical determinant for successful vaccination. The hemagglutination inhibition (HI) test is 'gold standard' test for quantification of antibodies specific to CPV-2, although the execution of this test is not feasible under field conditions. The present study was undertaken to develop a point of care testing to determine immune status prior to CPV-2 vaccination or to detect seroconversion in immunized dogs by latex agglutination test (LAT) using recombinant antigen...
September 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28669382/new-wide-dynamic-range-assays-for-quantification-of-anti-leishmania-igg2-and-iga-antibodies-in-canine-serum
#14
Ana Cantos-Barreda, Damián Escribano, Luis J Bernal, Luis Pardo-Marín, José J Cerón, Silvia Martínez-Subiela
The aims of this study were (1) to develop and validate time resolved-immunofluorometric assays for the detection of anti-Leishmania IgG2 and IgA antibodies in canine serum and (2) to evaluate the ability of these assays to quantify different amounts of anti-Leishmania antibodies in Leishmania-seronegative and seropositive dogs, determined by a commercial ELISA assay, and between different clinical stages according to LeishVet guidelines. The analytical validation showed that the assays had a good precision with intra- and inter-assay coefficients of variation lower than 10%...
July 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28657857/genetic-characterization-of-canine-parvovirus-in-sympatric-free-ranging-wild-carnivores-in-portugal
#15
Carla Miranda, Nuno Santos, Colin Parrish, Gertrude Thompson
Since its emergence in the 1970s, canine parvovirus (CPV) has been reported in domestic and nondomestic carnivores worldwide with severe implications on their health and survival. Here, we aim to better understand CPV circulation in multihost-pathogens systems by characterizing CPV DNA or viruses in 227 free-ranging wild carnivores of 12 species from Portugal. Collected samples during 1995-2011 were analyzed by PCR and sequence analysis. The canine parvovirus DNA was detected in 4 (2%) animals of two species, namely in wolves (Canis lupus; 3/63, 5%, 95% confidence interval=1...
June 28, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28639277/serum-derived-transfer-factor-stimulates-the-innate-immune-system-to-improve-survival-traits-in-high-risk-pathogen-scenarios
#16
Bridget V Willeford, Trudy Shapiro-Dunlap, Kenneth O Willeford
Preclinical Research Transfer Factors (TFs) are low molecular weight (<5,000 daltons) biological response mediators. In the present study, a serum derived TF improved the ability of the recipient animal to survive high-risk infectious challenges (salmonellosis and canine parvoviral enteritis (CPV)) by altering the host's cytokine response profile. Mice mortally challenged with 5,000 colony-forming units of Salmonella experienced a group mortality of 73% while mice treated with a single 5 mg dose of the TF demonstrated a significant decrease in morbidity (7%, p ≤ 0...
August 2017: Drug Development Research
https://www.readbyqxmd.com/read/28635524/serology-and-protein-electrophoresis-for-evidence-of-exposure-to-12-mink-pathogens-in-free-ranging-american-mink-neovison-vison-in-argentina
#17
Pablo Eduardo Martino, Luis Ernesto Samartino, Néstor Oscar Stanchi, Nilda Esther Radman, Eduardo Joaquín Parrado
BACKGROUND: Basic pathologic characteristics for farmed minks were previously reported worldwide. However, its status in the wild has not been studied in detail. OBJECTIVE: Serology and electrophoresis were carried out for evidence of exposure to 12 mink pathogens on two different locations. ANIMALS AND METHODS: Serology was done in 87 wild minks by reference techniques against Toxoplasma gondii, Encephalitozoon cuniculi, Neospora caninum, Brucella abortus, Mycobacterium bovis, Leptospira interrogans, canine distemper virus (CDV), canine adenovirus (CAV), canine parvovirus (CPV), rabies virus (RV), Influenza A virus (FLUAV) and Aleutian disease virus (ADV)...
December 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28622497/feline-panleukopenia-virus-is-not-associated-with-myocarditis-or-endomyocardial-restrictive-cardiomyopathy-in-cats
#18
Laura McEndaffer, Alex Molesan, Hollis Erb, Kathleen Kelly
Canine parvovirus-2 (CPV-2) is nearly indistinguishable from feline panleukopenia virus (FPV) and is a well-known cause of viral myocarditis in young puppies; however, it is not known whether either FPV or CPV-2 naturally infects feline cardiomyocytes and causes myocarditis. Endomyocarditis (EMC) and left ventricular endomyocardial fibrosis (LVEF), clinically known as "endomyocardial restrictive cardiomyopathy," are important feline heart diseases suspected to have an infectious etiology. A continuum is suggested with EMC representing the acute reaction to an unknown infectious agent and LVEF the chronic manifestation of repair...
July 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28616485/evidence-of-canine-parvovirus-transmission-to-a-civet-cat-paradoxurus-musangus-in-singapore
#19
Ian H Mendenhall, Dolyce Low, Erica Sena Neves, Ali Anwar, Serena Oh, Yvonne C F Su, Gavin J D Smith
Cross-species transmission can often lead to deleterious effects in incidental hosts. Parvoviruses have a wide host range and primarily infect members of the order Carnivora. Here we describe juvenile common palm civet cats (Paradoxurus musangus) that were brought to the Singapore zoo and fell ill while quarantined. The tissues of two individual civets that died tested PCR-positive for parvovirus infection. Phylogenetic analysis revealed this parvovirus strain falls in a basal position to a clade of CPV that have infected dogs in China and Uruguay, suggesting cross-species transmission from domestic to wild animals...
December 2016: One Health
https://www.readbyqxmd.com/read/28603036/canine-parvovirus-type-2-cpv-2-and-feline-panleukopenia-virus-fpv-codon-bias-analysis-reveals-a-progressive-adaptation-to-the-new-niche-after-the-host-jump
#20
Giovanni Franzo, Claudia Maria Tucciarone, Mattia Cecchinato, Michele Drigo
Based on virus dependence from host cell machinery, their codon usage is expected to show a strong relation with the host one. Even if this association has been stated, especially for bacteria viruses, the linkage is considered to be less consistent for more complex organisms and a codon bias adaptation after host jump has never been proven. Canine parvovirus type 2 (CPV-2) was selected as a model because it represents a well characterized case of host jump, originating from Feline panleukopenia virus (FPV)...
June 8, 2017: Molecular Phylogenetics and Evolution
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