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zoonotic diseases

Leila Sabrina Ullmann, Ramiro das Neves Dias-Neto, Didier Quevedo Cagnini, Ricardo Seiti Yamatogi, Jose Paes Oliveira-Filho, Viviane Nemer, Rodrigo Hidalgo Friciello Teixeira, Alexander Welker Biondo, João Pessoa Araújo
BACKGROUND: Mycobacterium is an important zoonotic agent with companion, livestock and wildlife animals reportedly playing a role as reservoirs. Although its association with reptiles has been described, the disease cycle remains to be fully established, particularly in snakes. Accordingly, this study aimed to report the occurrence of mycobacteriosis with clinical pneumonia in one exotic python snake (Python molurus) and one native green snake (Philodryas olfersii) from the Sorocaba Zoo, São Paulo state, Brazil...
2016: Journal of Venomous Animals and Toxins Including Tropical Diseases
Lei Deng, Wei Li, Zhijun Zhong, Chao Gong, Xuehan Liu, Xiangming Huang, Li Xiao, Ruoxuan Zhao, Wuyou Wang, Fan Feng, Yue Zhang, Yanchun Hu, Hualin Fu, Min He, Yue Zhang, Kongju Wu, Guangneng Peng
BACKGROUND: Enterocytozoon bieneusi is one of the most prevalent causative species of diarrhea and enteric diseases in various hosts. E. bieneusi has been identified in humans, mammals, birds, rodents and reptiles in China, but few studies have reported E. bieneusi in horses. Therefore, the present study was conducted to assess the prevalence, molecular characteristics and zoonotic potential of E. bieneusi among horses in southwestern China. FINDINGS: Three hundred and thirty-three fecal specimens were collected from horses on five farms in the Sichuan and Yunnan provinces of southwestern China...
October 25, 2016: Parasites & Vectors
Mateus Laguardia-Nascimento, Ana Paula Ferreira de Oliveira, Fernanda Rodas Pires Fernandes, Anselmo Vasconcelos Rivetti Junior, Marcelo Fernandes Camargos, Antônio Augusto Fonseca Júnior
BACKGROUND: Parapoxviruses are zoonotic viruses that infect cattle, goats and sheep; there have also been reports of infections in camels, domestic cats and seals. OBJECTIVE: The objective of this report was to describe a case of vesicular disease caused by pseudocowpox virus (PCPV) in Water buffalo (Bubalus bubalis) in Brazil. ANIMALS: Sixty buffalo less than 6 months old exhibited ulcers and widespread peeling of the tongue epithelium. There were no cases of vesicular disease in pigs or horses on the same property...
October 24, 2016: Veterinary Quarterly
Lu Lu, Nguyen Van Dung, Juliet E Bryant, Juan Carrique-Mas, Nguyen Van Cuong, Pham Honh Anh, Maia A Rabaa, Stephen Baker, Peter Simmonds, Mark E Woolhouse
Members of the Picornaviridae are important and often zoonotic viruses responsible for a variety of human and animal diseases. However, the evolution and spatial dissemination of different picornaviruses circulating in domestic animals are not well studied. We examined the rate of evolution and time of origin of porcine enterovirus G (EV-G) and porcine kobuvirus species C lineages (PKV-C) circulating in pig farms in Vietnam and from other countries. We further explored the spatiotemporal spread of EV-G and PKV-C in Southwest Vietnam using phylogeographic models...
January 2016: Virus Evolution
Michael van Straten, Svetlana Bardenstein, Gaby Keningswald, Menachem Banai
Brucellosis is a zoonotic disease that can cause severe illness in humans and considerable economic loss in the livestock industry. Although small ruminants are the preferential host for Brucella melitensis, this pathogen has emerged as a cause for Brucella outbreaks in cattle. S19 vaccination is implemented in many countries where B. abortus is endemic but its effectiveness against B. melitensis has not been validated. Here we show that vaccine effectiveness in preventing disease transmission between vaccinated and unvaccinated cohorts, as determined by seroconversion, was 87...
October 19, 2016: Vaccine
Elena García, Gerardo Espeso, Rocío Fernández, Ángel Gómez-Martín, José María Rodríguez-Linde, Christian De la Fe
Coxiella (C.) burnetii is the etiological agent of the zoonotic disease known a Q fever. This agent can infect multiple hosts although its pathogenic potential in wild ruminants has been poorly studied. The polymerase chain reaction and the serological test detected the presence of C. burnetii in a population of North African gazelles (n = 355), comprising dorcas gazelle (Gazella dorcas neglecta), dama gazelle (Nanger dama mhorr) and Cuvier's gazelle (Gazella cuvieri) which, some of them, they recently aborted...
September 19, 2016: Theriogenology
Roel Haesendonck, Geertrui Rasschaert, An Martel, Elin Verbrugghe, Marc Heyndrickx, Freddy Haesebrouck, Frank Pasmans
Salmonella enterica infections in pigeons are generally associated with pigeon-adapted strains of serovar Typhimurium that are of little public health concern. Here, we isolated Salmonella Enteritidis phage type 4 (PT4), an important human pathogen, from a population of feral pigeons in Brussels, which was further characterized by Pulsed-Field Gel Electrophoresis. All pigeon isolates belonged to the same pulsotype, which has been present in Belgian pigeons at least since 2001 and is associated with poultry and disease in humans...
November 15, 2016: Veterinary Microbiology
Jan Hattendorf, Kevin Louis Bardosh, Jakob Zinsstag
Surveillance of zoonotic disease requires special attention because the animal and human health sectors are involved. A proliferation of scholarly literature and technical guidelines exist for early detection of exotic and re-emerging diseases and to demonstrate freedom from disease as part of international trade agreements. In contrast, literature focussing on surveillance of endemic zoonotic diseases is relatively rare. In this article, we describe and discuss the main aspects to consider when planning a surveillance system for endemic zoonotic diseases in a resource-limited country...
October 18, 2016: Acta Tropica
Daniel M Czyż, Neeta Jain-Gupta, Howard A Shuman, Sean Crosson
Brucella abortus is an intracellular bacterial pathogen and an etiological agent of the zoonotic disease known as brucellosis. Brucellosis can be challenging to treat with conventional antibiotic therapies and, in some cases, may develop into a debilitating and life-threatening chronic illness. We used multiple independent assays of in vitro metabolism and intracellular replication to screen a library of 480 known bioactive compounds for novel B. abortus anti-infectives. Eighteen non-cytotoxic compounds specifically inhibited B...
October 21, 2016: Scientific Reports
Johanneke D Hemmink, Sophie B Morgan, Mario Aramouni, Helen Everett, Francisco J Salguero, Laetitia Canini, Emily Porter, Margo Chase-Topping, Katy Beck, Ronan Mac Loughlin, B Veronica Carr, Ian H Brown, Mick Bailey, Mark Woolhouse, Sharon M Brookes, Bryan Charleston, Elma Tchilian
Influenza virus infection in pigs is a major farming problem, causing considerable economic loss and posing a zoonotic threat. In addition the pig is an excellent model for understanding immunity to influenza viruses as this is a natural host pathogen system. Experimentally, influenza virus is delivered to pigs intra-nasally, by intra-tracheal instillation or by aerosol, but there is little data comparing the outcome of different methods. We evaluated the shedding pattern, cytokine responses in nasal swabs and immune responses following delivery of low or high dose swine influenza pdmH1N1 virus to the respiratory tract of pigs intra-nasally or by aerosol and compared them to those induced in naturally infected contact pigs...
October 20, 2016: Veterinary Research
Danieli Urach Monteiro, Maria Isabel Azevedo, Carla Weiblen, Sônia DE Avila Botton, Nadine Lysyk Funk, Cristiane DE Bona DA Silva, Régis Adriel Zanette, Thiago Guilherme Schwanz, Mário Luiz DE LA Rue
Cystic echinococcosis is a zoonotic disease of difficult diagnosis and treatment. The use of protoscolicidal agents in procedures is of utmost importance for treatment success. This study was aimed at analysing the in vitro and ex vivo activity of Melaleuca alternifolia oil (tea tree oil - TTO), its nanoemulsion formulation (NE-TTO) and its major component (terpinen-4-ol) against Echinococcus ortleppi protoscoleces obtained from cattle. Concentrations of 2·5, 5 and 10 mg mL-1 of TTO, 10 mg mL-1 of NE-TTO and 1, 1·5 and 2 mg mL-1 of terpinen-4-ol were evaluated in vitro against protoscoleces at 5, 10, 15 and 30 min...
October 20, 2016: Parasitology
Xingxing Dong, Xiaohong Wang, Xingchun Chen, Zhiyun Yan, Jing Cheng, Liangliang Gao, Yuan Liu, Jinquan Li
Staphylococcus aureus, a commensal and a pathogenic bacterium, causes a wide variety of diseases in humans and animals with a high impact on public health and the livestock industry. The risk of zoonotic transmission to humans highlights the need to understand the molecular ecology of S. aureus in foods. In this study, we obtained 25 S. aureus isolates from 39 crayfish samples in Hubei, China. PCR was applied for detection of presence of virulence and methicillin resistance genes in the pathogen genome. The result revealed that all of the 25 S...
October 19, 2016: Current Microbiology
Osman Yeşilbaş, Hasan Serdar Kıhtır, Hamdi Murat Yıldırım, Nevin Hatipoğlu, Esra Şevketoğlu
BACKGROUND: Leptospirosis is a zoonotic infectious disease caused by pathogenic spirochetes of the genus Leptospira. Although it is usually asymptomatic and self-limited, severe potentially fatal illness accompanied by multi-organ failure may occur. CASE REPORT: Here we report an unusual case of severe leptospirosis successfully treated with continuous venovenous hemofiltration (CVVHF) and therapeutic plasma exchange (TPE). The patient presented with pericardial tamponade, renal failure and macrophage activation syndrome, and later suffered prolonged jaundice and sclerosing cholangitis during hospitalization in the pediatric intensive care unit (PICU)...
September 2016: Balkan Medical Journal
Sukhpreet Kaur, Avinash Gupta
Balantidiasis is a rare zoonotic disease in humans. Balantidium coli is the causative ciliated protozoan. We present a case of urinary balantidiasis in a patient having chronic obstructive pulmonary disease (COPD) who was on steroids for a long time. He has no symptoms of bowel or urinary involvement. We are reporting this case because of its rarity in human urine and also for future references.
July 2016: Journal of Cytology
Aleksija S Neimanis, Charlotta Moraeus, Anders Bergman, Anders Bignert, Johan Höglund, Karl Lundström, Annika Strömberg, Britt-Marie Bäcklin
The biliary trematode Pseudamphistomum truncatum parasitizes a wide range of fish-eating mammals, including humans. Here we report the emergence of this parasite in grey seals (Halichoerus grypus) in the Baltic Sea. One hundred eighty-three of 1 554 grey seals (11.9%) examined from 2002-2013 had detectable hepatobiliary trematode infection. Parasite identification was confirmed as P. truncatum by sequencing the ITS2 region of a pool of five to 10 trematodes from each of ten seals collected off the coast of seven different Swedish counties...
2016: PloS One
Mika A Brown, Michael G Potroz, Seoh-Wei Teh, Nam-Joon Cho
Due to the global prevalence of Chlamydiae, exploring studies of diverse antichlamydial compounds is important in the development of effective treatment strategies and global infectious disease management. Chlamydiaceae is the most widely known bacterial family of the Chlamydiae order. Among the species in the family Chlamydiaceae, Chlamydia trachomatis and Chlamydia pneumoniae cause common human diseases, while Chlamydia abortus, Chlamydia psittaci, and Chlamydia suis represent zoonotic threats or are endemic in human food sources...
October 16, 2016: Microorganisms
Sanefumi Tsuha, Tomohiro Taniguchi, Soichi Shiiki, Masashi Narita, Daniel T Leung
BACKGROUND: Leptospirosis is a zoonotic disease known to have wide-ranging clinical manifestations. Despite a number of published case series, culture-confirmed series are few and there is a paucity of data on Jarisch-Herxheimer reaction (JHR) associated with treatment of leptospirosis. Our objective was to describe the clinical and epidemiological factors associated with leptospirosis in an endemic area of Japan, with a focus on the occurrence of JHR, an often unrecognized and likely underestimated phenomenon...
October 15, 2016: Transactions of the Royal Society of Tropical Medicine and Hygiene
Naomi Dailey, Deb Niemeier, Carine Elkhoraibi, C Gabriel Sentíes-Cué, Maurice Pitesky
While pasture-raised poultry comprises a small portion of the commercial poultry industry in North America, these alternative rearing systems have become increasingly popular. As such, it is critical to improve our understanding of husbandry practices and prevalence of zoonotic and epizoonotic diseases in these systems. This research reviews the results of a survey sent to 82 commercial pastured poultry farms in California. While the survey response was low (13.4%), it was enhanced by detailed in-person interviews and farm visits...
October 14, 2016: Poultry Science
Ziyang Sheng, Na Gao, Xiaoyun Cui, Dongying Fan, Hui Chen, Na Wu, Jianchun Wei, Jing An
Japanese encephalitis virus (JEV) is a pathogenic cause of Japanese Encephalitis (JE), which is a zoonotic disease transmitted by mosquitoes and amplified by pigs. Infection of JEV may lead to severe neurological sequelae, even death in humans and reproductive disorders in pigs. Vaccination is the only way to control JEV infection in humans. For pigs play important role in the JEV transmission cycle, developing a new veterinary vaccine is considered as a useful strategy for cutting off the transmission route of JEV...
October 12, 2016: Vaccine
Yansheng Geng, Youchun Wang
Hepatitis E virus (HEV) is globally prevalent with relatively high percentages of anti-HEV immunoglobulin G-positive individuals in the populations of developing and developed countries. There are two distinct epidemiologic patterns of hepatitis E. In areas with high disease endemicity, primarily developing countries in Asia and Africa, this disease is caused mainly by genotype 1 or 2 HEV, both of which transmit predominantly through contaminated water and occur as either outbreaks or as sporadic cases of acute hepatitis...
2016: Advances in Experimental Medicine and Biology
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