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Vector Borne and Zoonotic Diseases

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https://www.readbyqxmd.com/read/28418772/geographical-clusters-and-predictors-of-rabies-in-three-southeastern-states
#1
Sara Reilly, Wayne T Sanderson, W Jay Christian, Steven R Browning
The rabies virus causes progressive encephalomyelitis that is fatal in nearly 100% of untreated cases. In the United States, wildlife act as the primary reservoir for rabies; prevention, surveillance, and control costs remain high. The purpose of this study is to understand the current distribution of wildlife rabies in three southeastern states, with particular focus on raccoons as the primary eastern reservoir, as well as identify demographic and geographic factors which may affect the risk of human exposure...
April 18, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28402742/vertebrate-ticks-distribution-and-their-role-as-vectors-in-relation-to-road-edges-and-underpasses
#2
Juan D Delgado, Estefanía Abreu-Yanes, Néstor Abreu-Acosta, Manuel D Flor, Pilar Foronda
Roads fragment vertebrate populations and affect the dynamics and dispersal patterns of vertebrate parasites. We evaluated how vertebrate ticks distribute near roads and road underpasses in human-caused road-fragmented landscapes in Seville, SW Spain. We sampled 49 stations with 93 individualized sampling points and assessed tick abundance. We explored the relationship between tick presence and abundance and distance to the nearest road and underpass (drainage culverts and other passages used by vertebrates), and landscape features through categorical regression and nonparametric statistics...
April 12, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28402727/seroprevalence-and-risk-factors-of-toxoplasma-gondii-in-slaughter-pigs-in-shaanxi-province-northwestern-china
#3
Fei Wu, Ya-Lin Wang, Zhao Yang, Xi-Lai Li, Zong-Ren Li, Qing Lin
Toxoplasma gondii is an important food-borne zoonotic protozoan parasite, which can infect endothermic animals, including pigs. However, data on T. gondii in slaughter pigs in Shaanxi Province were still lacking. To detect the seroprevalence and analyze the risk factors of T. gondii infection in slaughter pigs in Shaanxi Province, Northwestern China, a total of 784 serum samples were collected from four administrative regions and detected by indirect hemagglutination test for T. gondii infection. Antibodies to T...
April 12, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28402703/molecular-detection-of-francisella-spp-among-ticks-attached-to-camels-in-egypt
#4
Nahed H Ghoneim, Khaled A Abdel-Moein, Hala M Zaher
This study was conducted to investigate the possible role of camels and attached ticks in the epidemiology of Francisella spp. including Francisella tularensis. For this purpose, a total of 319 ticks (248 Hyalomma dromedarii and 71 Amblyomma spp.) as well as 100 blood and 50 fecal samples collected from camels were screened for the presence of Francisella spp. by PCR through amplification of Francisella 16S rRNA gene. Positive samples were then tested for F. tularensis by PCR. In addition, serum samples from 75 camel abattoir workers were examined for the presence of IgG antibodies against F...
April 12, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28387600/serological-evidence-for-the-circulation-of-rift-valley-fever-virus-in-domestic-small-ruminants-in-southern-gabon
#5
Gael Darren Maganga, Andre Lea Abessolo Ndong, Clency Sylde Mikala Okouyi, Sheila Makiala Mandanda, Nadine N'Dilimabaka, Anais Pinto, Ernest Agossou, Brieuc Cossic, Jean-Paul Akue, Eric Maurice Leroy
Rift Valley fever (RVF) is a zoonotic disease, which caused several epidemics in humans in many countries of Africa. Using an inhibition enzyme-linked immunosorbent assay (ELISA), real-time reverse transcription PCR, and nested one-step reverse transcription PCR, we conducted a cross-sectional study in populations of sheep and goats from the Mongo County in 2014 to determine the circulation of the Rift Valley fever virus (RVFV) in small ruminants from this area. From a total of 201 small ruminants (95 sheep and 106 goats), the overall IgG seroprevalence against the RVFV was 6...
April 7, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28350284/molecular-characterization-of-the-kamese-virus-an-unassigned-rhabdovirus-isolated-from-culex-pruina-in-the-central-african-republic
#6
Huguette Dorine Simo Tchetgna, Emmanuel Nakoune, Benjamin Selekon, Antoine Gessain, Jean-Claude Manuguerra, Mirdad Kazanji, Nicolas Berthet
Rhabdoviridae is one of the most diversified families of RNA viruses whose members infect a wide range of plants, animals, and arthropods. The members of this family are classified into 13 genera and >150 unassigned viruses. Here, we sequenced the complete genome of a rhabdovirus belonging to the Hart Park serogroup, the Kamese virus (KAMV), isolated in 1977 from Culex pruina in the Central African Republic. The genomic sequence showed an organization typical of rhabdoviruses with additional genes in the P-M and G-L intergenic regions, as already reported for the Hart Park serogroup...
March 28, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28346868/circulation-of-zoonotic-arboviruses-in-equine-populations-of-mallorca-island-spain
#7
Jessica Vanhomwegen, Cécile Beck, Philippe Desprès, Amanda Figuerola, Ramón García, Sylvie Lecollinet, Marc López-Roig, Jean-Claude Manuguerra, Jordi Serra-Cobo
The presence of major arbovirus vector species, climate change that promotes the expansion and increase of their populations, and potential animal reservoirs mean that vector-borne diseases represent a significant health risk for Mallorca's inhabitants. Microbiological monitoring of circulating arboviruses, particularly flaviviruses causing encephalitis, was initiated using domestic horses from localities near wetlands as "sentinel" hosts. A total of 291 blood samples were taken from 172 horses between 2011 and 2012, using paired samples to highlight seroconversion events...
March 27, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28346867/the-challenges-and-advances-in-diagnosis-of-vector-borne-diseases-where-do-we-stand
#8
Josipa Kuleš, Lenka Potocnakova, Katarina Bhide, Laura Tomassone, Hans-Peter Fuehrer, Anita Horvatić, Asier Galan, Nicolas Guillemin, Petra Nižić, Vladimir Mrljak, Mangesh Bhide
Vector-borne diseases (VBD) are of major importance to human and animal health. In recent years, VBD have been emerging or re-emerging in many geographical areas, alarming new disease threats and economic losses. The precise diagnosis of many of these diseases still remains a major challenge because of the lack of comprehensive data available on accurate and reliable diagnostic methods. Here, we conducted a systematic and in-depth review of the former, current, and upcoming techniques employed for the diagnosis of VBD...
March 27, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28346866/prevalence-and-potential-risk-factors-for-bartonella-infection-in-tunisian-stray-dogs
#9
Jaber Belkhiria, Bruno B Chomel, Taoufik Ben Hamida, Rickie W Kasten, Matthew J Stuckey, Drew A Fleischman, Mary M Christopher, Henri-Jean Boulouis, Thomas B Farver
Bartonellae are blood-borne and vector-transmitted pathogens, some are zoonotic, which have been reported in several Mediterranean countries. Transmission from dogs to humans is suspected, but has not been clearly demonstrated. Our objectives were to determine the seroprevalence of Bartonella henselae, Bartonella vinsonii subsp. berkhoffii, Bartonella clarridgeiae, and Bartonella bovis (as a proxy for Candidatus Bartonella merieuxii) in stray dogs from Tunisia, identify the Bartonella species infecting the dogs and evaluate potential risk factors for canine infection...
March 27, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28346803/carbapenemase-producing-aeromonas-veronii-disseminated-in-the-environment-of-an-equine-specialty-hospital
#10
Rachael J Adams, Dimitria A Mathys, Dixie F Mollenkopf, Andrea Whittle, Joshua B Daniels, Thomas E Wittum
The emergence of bacterial resistance to carbapenem antibiotics is an urgent public health threat. Carbapenem drugs are a last resort treatment option for life-threatening infections. The frequent use of broad-spectrum antibiotics to treat hospitalized patients provides significant selection pressure favoring the emergence and dissemination of resistant organisms, including carbapenem-resistant Enterobacteriaceae (CRE). CREs have been reported in animal populations, but only rarely in horses. Our objective was to determine the prevalence of CRE in the environment of a referral equine specialty hospital...
March 27, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28332937/yersinia-spp-in-wild-rodents-and-shrews-in-finland
#11
Suvi Joutsen, Riikka Laukkanen-Ninios, Heikki Henttonen, Jukka Niemimaa, Liina Voutilainen, Eva R Kallio, Heikki Helle, Hannu Korkeala, Maria Fredriksson-Ahomaa
Yersinia enterocolitica and Yersinia pseudotuberculosis are important zoonotic bacteria causing human enteric yersiniosis commonly reported in Europe. All Y. pseudotuberculosis strains are considered pathogenic, while Y. enterocolitica include both pathogenic and nonpathogenic strains which can be divided into six biotypes (1A, 1B, and 2-5) and about 30 serotypes. The most common types causing yersiniosis in Europe are Y. enterocolitica bioserotypes 4/O:3 and 2/O:9. Strains belonging to biotype 1A are considered as nonpathogenic because they are missing important virulence genes like the attachment-invasion-locus (ail) gene in the chromosome and the virulence plasmid...
March 23, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28332927/leptospira-spp-in-small-mammals-from-areas-with-low-and-high-human-hantavirus-incidences-in-south-west-germany
#12
Anna Obiegala, Christoph Albrecht, Maysaa Dafalla, Stephan Drewes, Carolin Oltersdorf, Hendrik Turni, Christian Imholt, Jens Jacob, Christiane Wagner-Wiening, Rainer G Ulrich, Martin Pfeffer
INTRODUCTION: Leptospirosis is caused by Leptospira spp. and is considered the most widespread zoonotic disease worldwide. It mimics nephropathia epidemica in humans, a disease mainly caused by Puumala hantavirus (PUUV). Small mammals are reservoirs for Leptospira spp. and PUUV. Seewis virus (SWSV) is a shrew-borne hantavirus with unknown pathogenicity. The objective of this study was to estimate the prevalence for Leptospira spp. and the frequency of Leptospira-hantavirus co-infections in small mammals collected at locations with high and low incidences in humans...
March 23, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28323557/seroprevalence-of-severe-fever-with-thrombocytopenia-syndrome-virus-in-hedgehog-from-china
#13
Yue Sun, Miao-Miao Liu, Li-Mei Luo, Li Zhao, Hong-Ling Wen, Zhen-Tang Zhang, Jian-Wei Liu, Zai-Feng Xue, Dong-Qiang Ma, Shu-Jun Ding, Xiao-Ying Lei, Xue-Jie Yu
Severe fever with thrombocytopenia syndrome, an emerging hemorrhagic fever, is caused by severe fever with thrombocytopenia syndrome virus (SFTSV), a tick-borne bunyavirus. Information regarding SFTSV animal hosts is very limited. In this study, we showed that 64% (9/14) of hedgehogs in Shandong Province, China were seropositive to SFTSV antibody, suggesting that hedgehog could be a vertebrate parasitifer for SFTSV.
March 21, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28301305/molecular-characterization-of-leishmania-parasites-in-giemsa-stained-slides-from-cases-of-human-cutaneous-and-visceral-leishmaniasis-eastern-algeria
#14
Nadia Beldi, Roukaya Mansouri, Jihene Bettaieb, Alia Yaacoub, Hejer Souguir Omrani, Yusr Saadi Ben Aoun, Farida Saadni, Ikram Guizani, Souheila Guerbouj
BACKGROUND: In Algeria, visceral leishmaniasis (VL) is due to Leishmania (L.) infantum, while three cutaneous forms (CL) are caused by Leishmania major, Leishmania tropica and Leishmania infantum. In this study, the use of Giemsa-stained slides was evaluated with two PCR techniques, in Eastern Algeria. MATERIALS AND METHODS: A total of 136 samples corresponding to 100 CL smears (skin scrapings) and 36 VL slides (bone marrow aspirates) collected from 2008 to 2014 were tested...
March 16, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28301296/distinct-leishmania-infantum-strains-circulate-in-humans-and-dogs-in-the-emilia-romagna-region-northeastern-italy
#15
Gianluca Rugna, Elena Carra, Francesco Corpus, Mattia Calzolari, Daniela Salvatore, Romeo Bellini, Antonietta Di Francesco, Erica Franceschini, Antonella Bruno, Giovanni Poglayen, Stefania Varani, Fabrizio Vitale, Giuseppe Merialdi
Human leishmaniasis is an emerging problem in Italy and is on the increase in the Emilia-Romagna region, northeastern part of the country. Nevertheless, studies dealing with the molecular characterization of Leishmania spp. circulating in these areas are limited. In the present work, we explored the genetic polymorphism of Leishmania isolates from 28 cases of canine leishmaniasis and three cases of human visceral leishmaniasis (VL), which occurred in 2013-2014 in the Emilia-Romagna region. The characterization was carried out in comparison with nine human isolates of Leishmania from other VL endemic Italian regions and two reference strains...
March 16, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28287934/seasonal-patterns-in-eastern-equine-encephalitis-virus-antibody-in-songbirds-in-southern-maine
#16
Susan P Elias, Patrick Keenan, Joan L Kenney, Sara R Morris, Kristen M Covino, Sara Robinson, Kimberly A Foss, Peter W Rand, Charles Lubelczyk, Eleanor H Lacombe, John-Paul Mutebi, David Evers, Robert P Smith
The intent of this study was to assess passerine eastern equine encephalitis virus (EEEv) seroprevalence during the breeding season in southern Maine by testing songbird species identified in the literature as amplifying hosts of this virus. In 2013 and 2014, we collected serum samples from songbirds at a mainland site and an offshore island migratory stopover site, and screened samples for EEEv antibodies using plaque reduction neutralization tests. We compared seasonal changes in EEEv antibody seroprevalence in young (hatched in year of capture) and adult birds at the mainland site, and also compared early season seroprevalence in mainland versus offshore adult birds...
March 13, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28287930/detection-of-imjin-virus-and-seoul-virus-in-crocidurine-shrews-in-shandong-province-china
#17
Xi-Feng Sun, Li Zhao, Zhen-Tang Zhang, Miao-Miao Liu, Zai-Feng Xue, Hong-Ling Wen, Dong-Qiang Ma, Yu-Ting Huang, Yue Sun, Chuan-Min Zhou, Li-Mei Luo, Jian-Wei Liu, Wen-Qian Li, Hao Yu, Xue-Jie Yu
INTRODUCTION: Recently, hantaviruses have been discovered in insectivores in Europe, Asia, Africa, and North America. Imjin virus (MJNV) was first isolated from the lung tissues of Ussuri white-toothed shrew (Crocidura lasiura) from South Korea in 2009. We aim to detect the species and prevalence of insectivore- and rodent-borne hantaviruses in shrews and rodents. MATERIALS AND METHODS: Shrews and rodents were captured in Jiaonan County of Shandong Province, China, in 2014...
March 13, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28192064/aedes-borne-virus-mosquito-interactions-mass-spectrometry-strategies-and-findings
#18
Victoria Pando-Robles, Cesar V Batista
Aedes-borne viruses are responsible for high-impact neglected tropical diseases and unpredictable outbreaks such as the ongoing Zika epidemics. Aedes mosquitoes spread different arboviruses such as Dengue virus (DENV), Chikungunya virus (CHIKV), and Zika virus, among others, and are responsible for the continuous emergence and reemergence of these pathogens. These viruses have complex transmission cycles that include two hosts, namely the Aedes mosquito as a vector and susceptible vertebrate hosts. Human infection with arboviruses causes diseases that range from subclinical or mild to febrile diseases, encephalitis, and hemorrhagic fever...
February 13, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28165925/molecular-detection-of-candidatus-bartonella-mayotimonensis-in-north-american-bats
#19
Thomas M Lilley, Cali A Wilson, Riley F Bernard, Emma V Willcox, Eero J Vesterinen, Quinn M R Webber, Laura Kurpiers, Jenni M Prokkola, Imran Ejotre, Allen Kurta, Kenneth A Field, DeeAnn M Reeder, Arto T Pulliainen
Candidatus Bartonella mayotimonensis was detected in 2010 from an aortic valve sample of a patient with endocarditis from Iowa, the United States of America. The environmental source of the potentially new endocarditis-causing Bartonella remained elusive. We set out to study the prevalence and diversity of bat-associated Bartonella in North America. During 2015, mist nets and harp traps were used to capture 92 bats belonging to two species: little brown myotis (Myotis lucifugus Le Conte 1831, n = 73) and the gray myotis (M...
April 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28165890/enterobacteriaceae-harboring-ampc-blacmy-and-esbl-blactx-m-in-migratory-and-nonmigratory-wild-songbird-populations-on-ohio-dairies
#20
Dimitria A Mathys, Blake A Mathys, Dixie F Mollenkopf, Joshua B Daniels, Thomas E Wittum
Extended-spectrum β-lactamases (ESBLs) confer bacterial resistance to critically important antimicrobials, including extended-spectrum cephalosporins (ESCs). Livestock are important reservoirs for the zoonotic food-borne transmission of ESC-resistant enteric bacteria. Our aim is to describe the potential role of migratory and resident wild birds in the epidemiology of ESBL-mediated bacterial resistance on dairy farms. Using mist nets, we sampled wild migratory and resident birds either immediately adjacent to or 600 ft away from free-stall barns on three Ohio dairy farms during the 2014 and 2015 spring migrations...
April 2017: Vector Borne and Zoonotic Diseases
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