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Transboundary and Emerging Diseases

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https://www.readbyqxmd.com/read/28921873/diagnostic-specificity-of-the-african-swine-fever-virus-antibody-detection-enzyme-linked-immunosorbent-assay-in-feral-and-domestic-pigs-in-the-united-states
#1
H C Bergeron, P S Glas, K R Schumann
African swine fever (ASF) is a highly contagious haemorrhagic disease of pigs that has the potential to cause mortality nearing 100% in naïve animals. While an outbreak of ASF in the United States' pig population (domestic and feral) has never been reported, an introduction of the disease has the potential to cause devastation to the pork industry and food security. During the recovery phase of an outbreak, an antibody detection diagnostic assay would be required to prove freedom of disease within the previously infected zone and eventually nationwide...
September 18, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28921895/genetic-characterization-of-african-swine-fever-virus-isolates-from-soft-ticks-at-the-wildlife-domestic-interface-in-mozambique-and-identification-of-a-novel-genotype
#2
C J Quembo, F Jori, W Vosloo, L Heath
African swine fever virus (ASFV) is one of the most threatening infectious diseases of pigs. There are not sufficient data to indicate the importance of the sylvatic cycle in the spread and maintenance of the disease locally and potentially, globally. To assess the capacity to maintain ASF in the environment, we investigated the presence of soft tickreservoirs of ASFV in Gorongosa National Park (GNP) and its surrounding villages. A total of 1,658 soft ticks were recovered from warthog burrows and pig pens at the wildlife/livestock interface of the GNP and viral DNA was confirmed by nested PCR in 19% of Ornithodoros porcinus porcinus and 15% of O...
September 17, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28921893/a-case-of-ocular-infection-with-onchocerca-lupi-in-a-dog-from-germany
#3
A Hodžić, B Hinney, S König, T J Naucke, G Duscher, A Joachim
Onchocerca lupi is an emerging zoonotic parasite infecting the ocular connective tissue of dogs, cats and humans. The only known case of canine ocular onchocerciasis in Germany was documented in 2002 in a shelter dog. However, the species of Onchocerca causing the infection could not be identified. Here, we report a case of the ocular infection with O. lupi in a dog, confirmed by PCR and sequencing of the cox1 gene. Further investigations are required to assess the risk factors for transmission and spread of the parasite in Germany...
September 17, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28921885/identification-of-a-divergent-genotype-of-equine-arteritis-virus-from-south-american-donkeys
#4
J Rivas, V Neira, J Mena, B Brito, A Garcia, C Gutierrez, D Sandoval, R Ortega
A novel equine arteritis virus (EAV) was isolated and sequenced from feral donkeys in Chile. Phylogenetic analysis indicates that the new virus and South African asinine strains diverged at least 100 years from equine EAV strains. The results indicate that asinine strains belonged to a different EAV genotype.
September 17, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28921878/simplifying-sampling-for-african-swine-fever-surveillance-assessment-of-antibody-and-pathogen-detection-from-blood-swabs
#5
J Carlson, L Zani, T Schwaiger, I Nurmoja, A Viltrop, A Vilem, M Beer, S Blome
African swine fever (ASF) is a notifiable disease with serious socio-economic consequences that has been present in wild boar in the Baltic States and Poland since 2014. An introduction of ASF is usually accompanied by increased mortality, making fallen wild boar and hunted animals with signs of disease the main target for early warning and passive surveillance. It is difficult, however, to encourage hunters and foresters to report and take samples from these cases. A pragmatic and easy sampling approach with quick-drying swabs could facilitate this...
September 17, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28921870/detection-and-genetic-characterization-of-porcine-circovirus-type-3-in-italy
#6
S Faccini, I Barbieri, A Gilioli, G Sala, L R Gibelli, A Moreno, C Sacchi, C Rosignoli, G Franzini, A Nigrelli
Porcine circovirus type 3 (PCV3) was recently proposed as a new porcine circovirus. It has been described by researchers in the USA and China and associated with porcine dermatitis and nephropathy syndrome, reproductive failure and systemic inflammation disease. The study reports the occurrence of the new virus in Italy. PCV3 was detected in the tissues of foetuses and stillborn piglets coming from two farms located in the Po Valley. The genome sequences of the two Italian strains share 99.7% to 97.8% of nucleotide identity with those available in GenBank...
September 17, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28856846/emergence-of-an-exotic-strain-of-serotype-o-foot-and-mouth-disease-virus-o-me-sa-ind-2001d-in-south-east-asia-in-2015
#7
Y Qiu, R Abila, P Rodtian, D P King, N J Knowles, L T Ngo, V T Le, S Khounsy, P Bounma, S Lwin, B C Verin, P Widders
The O/Middle East-South Asia (ME-SA)/Ind-2001 lineage of foot-and-mouth disease virus (FMDV) is endemic in the Indian subcontinent and has been reported in the Middle East and North Africa, but it had not been detected in South-East Asia (SEA) before 2015. This study reports the recent incursions of this viral lineage into SEA, which caused outbreaks in Vientiane Capital of Lao People's Democratic Republic (PDR) in April 2015, in Dak Nong, Dak Lak and Ninh Thuan Provinces of Vietnam from May to October 2015, and in Rakhine State of Myanmar in October 2015...
August 30, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28834294/update-on-mycoplasma-hyopneumoniae-infections-in-pigs-knowledge-gaps-for-improved-disease-control
#8
D Maes, M Sibila, P Kuhnert, J Segalés, F Haesebrouck, M Pieters
Mycoplasma hyopneumoniae (M. hyopneumoniae) is the primary pathogen of enzootic pneumonia, a chronic respiratory disease in pigs. Infections occur worldwide and cause major economic losses to the pig industry. The present paper reviews the current knowledge on M. hyopneumoniae infections, with emphasis on identification and analysis of knowledge gaps for optimizing control of the disease. Close contact between infected and susceptible pigs is the main route of M. hyopneumoniae transmission. Management and housing conditions predisposing for infection or disease are known, but further research is needed to better understand M...
August 23, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28816014/brucellosis-in-a-clymene-dolphin-stenella-clymene-stranded-in-brazil
#9
LETTER
A M Sánchez-Sarmiento, V L Carvalho, C Sacristán, K R Groch, R A Ressio, N C C A Fernandes, J M Guerra, S Costa-Silva, J Díaz-Delgado, C M Favero, N S Silva, J S Ferreira Neto, A C O Meirelles, J L Catão-Dias
No abstract text is available yet for this article.
August 16, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28815990/trade-patterns-facilitating-highly-pathogenic-avian-influenza-virus-dissemination-in-the-free-grazing-layer-duck-system-in-vietnam
#10
A Meyer, T X Dinh, T A Han, D V Do, T V Nhu, L T Pham, T T T Nguyen, S Newman, B Häsler, D U Pfeiffer, T Vergne
Highly pathogenic avian influenza (HPAI) viruses continue to threaten smallholder poultry producers in several South-east Asian countries, including Vietnam. In particular, the free-grazing duck system has been repeatedly highlighted as a major risk factor for HPAI outbreaks. Free-grazing ducks, which scavenge on rice paddies after the harvest, account for a large proportion of the duck population in Vietnam and the wider South-east Asian region. However, the structure and dynamics of the free-grazing duck production from farm to consumption has not been described for Vietnam...
August 16, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28815930/schmallenberg-virus-in-culicoides-latreille-diptera-ceratopogonidae-populations-in-france-during-2011-2012-outbreak
#11
A Ségard, L Gardès, E Jacquier, C Grillet, B Mathieu, I Rakotoarivony, M-L Setier-Rio, D Chavernac, C Cêtre-Sossah, T Balenghien, C Garros
Following the emergence of the Schmallenberg virus (SBV) in 2011 in Germany and its rapid spread in Europe, Culicoides (Diptera: Ceratopogonidae) collected through the French surveillance network were analysed in order to record the presence of virus genome into species diversity collected, to assess the minimum infectious rates (MIR) and the virus circulation dynamics in Culicoides populations. Two vector activity periods were selected (2011, August to October, 53 sites and 2012, June to October, 35 sites) corresponding to 704 night collections...
August 15, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28805043/fatal-peste-des-petits-ruminants-disease-in-chowsingha
#12
S Jaisree, R P Aravindhbabu, P Roy, M G Jayathangaraj
This communication reports fatal Peste des petits ruminants (PPR) disease in Chowsingha (Tetracerus quadricornis), a member of the subfamily Bovinae and family Bovidae captured in a Zoological Park. The animals showed clinical signs of acute respiratory disease with frothy nasal discharge (1-2 days) and mortality of twenty animals (80%) within 48 hr. Necropsy of dead Chowsingha showed haemorrhagic patches in trachea and severe congestion of lungs and ocular mucosa. There was no characteristic lesion in the intestine...
August 14, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28805020/evaluation-of-bovine-viral-diarrhoea-virus-control-strategies-in-dairy-herds-in-hokkaido-japan-using-stochastic-modelling
#13
S Sekiguchi, P Presi, R Omori, K Staerk, M Schuppers, N Isoda, Y Yoshikawa, T Umemura, H Nakayama, Y Fujii, Y Sakoda
Bovine viral diarrhoea virus (BVDV) infection in cattle can result in growth retardation, reduced milk production, reproductive disorders and death. Persistently infected animals are the primary source of infection. In Hokkaido, Japan, all cattle entering shared pastures in summer are vaccinated before movement for disease control. Additionally, these cattle may be tested for BVDV and culled if positive. However, the effectiveness of this control strategy aiming to reduce the number of BVDV-infected animals has not been assessed...
August 14, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28805017/estimating-the-between-farm-transmission-rates-for-highly-pathogenic-avian-influenza-subtype-h5n1-epidemics-in-bangladesh-between-2007-and-2013
#14
A Ssematimba, I Okike, G M Ahmed, M Yamage, G J Boender, T J Hagenaars, B Bett
Highly Pathogenic Avian Influenza (HPAI) is classified by the World Organization for Animal Health as one of the notifiable diseases. Its occurrence is associated with severe socio-economic impacts and is also zoonotic. Bangladesh HPAI epidemic data for the period between 2007 and 2013 were obtained and split into epidemic waves based on the time lag between outbreaks. By assuming the number of newly infected farms to be binomially distributed, we fit a Generalized Linear Model to the data to estimate between-farm transmission rates (β)...
August 14, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28804982/epidemiological-investigation-of-outbreaks-of-fowl-adenovirus-infections-in-commercial-chickens-in-china
#15
Y Niu, Q Sun, G Zhang, W Sun, X Liu, Y Xiao, Y Shang, S Liu
One hundred and five fowl adenovirus (FAdV) strains were isolated in China from 2015 to 2016 from poultry with inclusion body hepatitis (IBH) and hydropericardium syndrome (HPS). Polymerase chain reactions determined that 68 were FAdV species C, five were FAdV species D, two were FAdV species E, and 30 contained two or more different FAdV strains. A phylogenetic analysis showed that the isolated FAdV strains clustered into three major groups: FAdV-C, FAdV-D and FAdV-E. Based on a hexon gene sequencing analysis, these viruses were genetically related to FAdV-4, FAdV-7, FAdV-8b and FAdV-11, of which FAdV-4 was dominant (93% of the strains)...
August 13, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28795533/epidemiology-diagnosis-and-control-of-classical-swine-fever-recent-developments-and-future-challenges
#16
Alexander Postel, Sophia Austermann-Busch, Anja Petrov, Volker Moennig, Paul Becher
Classical swine fever (CSF) represents a major health and trade problem for the pig industry. In endemic countries or those with a wild boar reservoir, CSF remains a priority for Veterinary Services. Surveillance as well as stamping out and/or vaccination are the principle tools of prevention and control, depending on the context. In the past decades, marker vaccines and accompanying diagnostic tests allowing the discrimination of infected from vaccinated animals have been developed. In the European Union, an E2 subunit and a chimeric live vaccine have been licensed and are available for the use in future disease outbreak scenarios...
August 10, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28795509/discontools-identifying-gaps-in-controlling-bovine-spongiform-encephalopathy
#17
M Simmons, G Ru, C Casalone, B Iulini, C Cassar, T Seuberlich
This article summarizes the 2016 update of the DISCONTOOLS project gap analysis on bovine spongiform encephalopathy (BSE), which was based on a combination of literature review and expert knowledge. Uncertainty still exists in relation to the pathogenesis, immunology and epidemiology of BSE, but provided that infected material is prohibited from entering the animal feed chain, cases should continue to decline. BSE does not appear to spread between cattle, but if new strains with this ability appear then control would be considerably more difficult...
August 10, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28762657/significant-re-emergence-and-recirculation-of-schmallenberg-virus-in-previously-exposed-dairy-herds-in-ireland-in-2016
#18
Á B Collins, D J Barrett, M L Doherty, M McDonnell, J F Mee
Schmallenberg virus (SBV) circulation was investigated in 25 previously exposed dairy herds in Ireland in 2016. A population of 1,550 spring-2014-born animals, which had been monitored for SBV infection in 2014 and 2015 as part of a previous SBV surveillance study, were resampled for evidence of SBV infection during 2016. A total of 366 blood samples were collected in the 25 study herds (15 samples per herd) between 3 March 2017 and 10 March 2017 (before the 2017 vector-active season) and analysed for SBV antibodies using a competitive ELISA kit (IDVet)...
August 1, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28762629/evaluation-of-blowfly-larvae-diptera-calliphoridae-as-possible-reservoirs-and-mechanical-vectors-of-african-swine-fever-virus
#19
J H Forth, J Amendt, S Blome, K Depner, H Kampen
In 2014, highly virulent African swine fever virus (ASFV) was introduced into the Baltic States and Poland, with new cases being reported almost every week from wild boar and also from domestic pigs. Contrary to initial predictions that the disease would either die out due to the high virulence of the virus strain or spread rapidly in westerly direction, the infection became endemic and spread slowly. The unexpected disease epidemiology led to the hypothesis that hitherto unconsidered factors might contribute to virus persistence and dispersal...
August 1, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28758367/hobi-like-is-the-most-prevalent-ruminant-pestivirus-in-northeastern-brazil
#20
S Silveira, L F Baumbach, M N Weber, A C S Mósena, M S da Silva, S P Cibulski, M R Borba, R D Maia, V C S Coimbra, G M de Moraes, J F Ridpath, C W Canal
The ruminant pestiviral species BVDV-1, BVDV-2 and BDV, along with the putative species HoBi-like, may cause substantial economic losses in cattle, sheep and goats. Brazil's large size, variable biomes and wide range of ruminant animal production within different geographic regions suggest that the presence and prevalence of ruminant pestivirus may differ by regions within Brazil. This study investigated the genetic diversity of ruminant pestiviruses and determined the frequency of active infections within two states of the Northeast Region of Brazil, Maranhão and Rio Grande do Norte...
July 30, 2017: Transboundary and Emerging Diseases
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