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Yu Chun Cai, Fen Wu, Wei Hu, Jiaxu Chen, Shao Hong Chen, Bin Xu, Yan Lu, Lin Ai, Chun Li Yang, Shimin Zhao
Babesiosis has become a new global threat impacting human health, and most human babesiosis cases are caused by Babesia microti. Until now few antigens of B. microti have been described which can be used for the diagnosis of human babesiosis. In the present study, we report on the bioinformatic analysis, cloning and expression of the sequence encoding the B. microti seroreactive antigen 5-1-1 to investigate its potential incorporation in serologic diagnostic tools for babesiosis. Bioinformatic analysis and recombinant gene expression were performed to molecularly characterize seroreactive antigen 5-1-1...
March 17, 2018: Acta Tropica
Rocío Checa, Ana María López-Beceiro, Ana Montoya, Juan Pedro Barrera, Nieves Ortega, Rosa Gálvez, Valentina Marino, Julia González, Ángeles Sonia Olmeda, Luis Eusebio Fidalgo, Guadalupe Miró
Piroplasmosis is caused by several species of protozoa such as the Babesia microti-like piroplasm (Bml), an emerging blood protozoan also known as Theileria annae or Babesia vulpes. Infection by Bml was first reported in dogs in Spain where it is endemic today. Recently, a high prevalence of Bml has been increasingly detected in red foxes (Vulpes vulpes) in European countries. The objective of this study was to determine infection levels of this parasite in foxes from Galicia, NW Spain, and ticks species infestation in these carnivores, where they are so far unknown...
March 15, 2018: Veterinary Parasitology
Ferda Sevinc, Mo Zhou, Shinuo Cao, Onur Ceylan, Mehmet Fatih Aydin, Mutlu Sevinc, Xuenan Xuan
Babesiosis, theileriosis, and anaplasmosis are the most common tick-borne diseases in sheep. The majority of anaplasmosis and theileriosis are subclinical; however, babesiosis causes severe infections in small ruminants. Although there are many reports of co-infections with the agents of these diseases, their clinical severity compared with either of the infections alone is unknown. Within the host, interactions between co-infecting species may cause variations in clinical presentation and response to therapy...
March 15, 2018: Veterinary Parasitology
Telleasha L Greay, Alireza Zahedi, Anna-Sheree Krige, Jadyn M Owens, Robert L Rees, Una M Ryan, Charlotte L Oskam, Peter J Irwin
BACKGROUND: Apicomplexan tick-borne pathogens that cause disease in companion animals include species of Babesia Starcovici, 1893, Cytauxzoon Neitz & Thomas, 1948, Hepatozoon Miller, 1908 and Theileria Bettencourt, Franca & Borges, 1907. The only apicomplexan tick-borne disease of companion animals that is known to occur in Australia is babesiosis, caused by Babesia canis vogeli Reichenow, 1937 and Babesia gibsoni Patton, 1910. However, no molecular investigations have widely investigated members of Apicomplexa Levine, 1980 in Australian ticks that parasitise dogs, cats or horses, until this present investigation...
March 20, 2018: Parasites & Vectors
Tarini Ullal, Adam Birkenheuer, Shelly Vaden
Babesiosis is a hemoprotozoal tick-borne disease that is commonly associated with thrombocytopenia and anemia; however, renal involvement has been documented in dogs. The purpose of this retrospective study was to document azotemia and proteinuria in dogs infected with Babesia sp. and to describe the response to antiprotozoal therapy. The electronic database of the North Carolina State University Vector Borne Disease Laboratory was searched to identify dogs who were diagnosed with babesiosis and to determine if they had proteinuria and/or azotemia...
March 20, 2018: Journal of the American Animal Hospital Association
Graziana Da Rold, Silvia Ravagnan, Fabio Soppelsa, Elena Porcellato, Mauro Soppelsa, Federica Obber, Carlo Vittorio Citterio, Sara Carlin, Patrizia Danesi, Fabrizio Montarsi, Gioia Capelli
BACKGROUND: Northeastern Italy is a hotspot for several tick-borne pathogens, transmitted to animals and humans mainly by Ixodes ricinus. Here we compare the results of molecular monitoring of ticks and zoonotic TBPs over a six-year period, with the monitoring of red foxes (Vulpes vulpes) in an endemic area. RESULTS: In the period 2011-2016, 2,578 ticks were collected in 38 sites of 20 municipalities of Belluno Province. Individual adults (264), pooled larvae (n = 330) and nymphs (n = 1984) were screened for tick-borne encephalitis virus, Borrelia burgdorferi (s...
March 20, 2018: Parasites & Vectors
Mary Marcondes, Karina Y Hirata, Juliana P Vides, Ludmila S V Sobrinho, Jaqueline S Azevedo, Thállitha S W J Vieira, Rafael F C Vieira
BACKGROUND: Visceral leishmaniasis (VL) has been increasingly recognized in cats living in areas endemic for the disease. Co-infection with Leishmania infantum and other infectious agents is well established in dogs. However, for cats, data on co-infections with L. infantum and other infectious agents are still sparse. The aim of this study was to identify the prevalence of vector-borne pathogens, Mycoplasma spp., feline immunodeficiency virus (FIV) and feline leukaemia virus (FeLV) in cats from an area endemic for VL in southeastern Brazil...
March 20, 2018: Parasites & Vectors
Filipe Dantas-Torres, Yury Yzabella da Silva, Débora Elienai de Oliveira Miranda, Kamila Gaudêncio da Silva Sales, Luciana Aguiar Figueredo, Domenico Otranto
BACKGROUND: Ehrlichia canis is a tick-borne bacterium that causes severe, life-threatening disease in dogs, being more prevalent in tropical and subtropical countries. Randomized studies conducted in Brazil indicate that the prevalence of E. canis infection in dogs ranges from 0.7% to over 50.0%. In a study conducted in northern Brazil, the prevalence was higher in dogs from urban areas, as compared to dogs from rural areas. In the present study, we investigated the exposure to Ehrlichia spp...
March 20, 2018: Parasites & Vectors
Ana Cristina Oliveira, Maria Francisca Luz, Sara Granada, Hugo Vilhena, Yaarit Nachum-Biala, Ana Patrícia Lopes, Luís Cardoso, Gad Baneth
BACKGROUND: Molecular identification of tick-borne pathogen infection in cats from Africa is scarce. The presence of bacterial (Anaplasma and Ehrlichia) and protozoal (Babesia and Hepatozoon) agents was investigated in blood samples from 102 domestic cats from Luanda, Angola, by polymerase chain reaction and DNA sequencing. RESULTS: Three cats (2.9%) were found infected with Ehrlichia canis, three (2.9%) with Hepatozoon felis and one (1.0%) with Anaplasma bovis...
March 20, 2018: Parasites & Vectors
Barend L Penzhorn, Edward C Netherlands, Courtney A Cook, Nico J Smit, Ilse Vorster, Robert F Harrison-White, Marinda C Oosthuizen
BACKGROUND: Domestic dogs are not native to sub-Saharan Africa, which may account for their susceptibility to Babesia rossi, of which endemic black-backed jackals (Canis mesomelas) are natural reservoirs. There is virtually no information on the occurrence of potentially pathogenic haemogregarines (e.g. Hepatozoon canis) or even rickettsial bacteria (e.g. Ehrlichia spp. and Anaplasma spp.) in indigenous canids in sub-Saharan Africa. Such organisms could pose a risk to domestic dogs, as well as to populations of endangered indigenous canid species...
March 20, 2018: Parasites & Vectors
Charalampos Attipa, Laia Solano-Gallego, Kostas Papasouliotis, Francesca Soutter, David Morris, Chris Helps, Scott Carver, Séverine Tasker
BACKGROUND: In the Mediterranean basin, Leishmania infantum is a major cause of disease in dogs, which are frequently co-infected with other vector-borne pathogens (VBP). However, the associations between dogs with clinical leishmaniosis (ClinL) and VBP co-infections have not been studied. We assessed the risk of VBP infections in dogs with ClinL and healthy controls. METHODS: We conducted a prospective case-control study of dogs with ClinL (positive qPCR and ELISA antibody for L...
March 20, 2018: Parasites & Vectors
Maria Flaminia Persichetti, Maria Grazia Pennisi, Angela Vullo, Marisa Masucci, Antonella Migliazzo, Laia Solano-Gallego
BACKGROUND: Cats can be carriers of infected arthropods and be infected with several vector-borne pathogens (VBP) but there is limited knowledge about their pathogenic role in cats. RESULTS: A cross-sectional controlled study investigated the clinical status and antibody (Bartonella henselae, Rickettsia conorii, Ehrlichia canis, Anaplasma phagocytophilum, Babesia microti and Leishmania infantum) and/or blood PCR (Mycoplasma spp., Bartonella spp., Rickettsia spp...
March 20, 2018: Parasites & Vectors
Julian Nader, Nina Król, Martin Pfeffer, Valerie Ohlendorf, Marco Marklewitz, Christian Drosten, Sandra Junglen, Anna Obiegala
BACKGROUND: Ticks are important carriers of many different zoonotic pathogens. To date, there are many studies about ticks and tick-borne pathogens (TBP), but only a few were carried out in Bulgaria. The present study intends to detect the prevalence of tick-borne bacteria and parasites occurring at the Black Sea in Bulgaria to evaluate the zoonotic potential of the tick-borne pathogens transmitted by ticks in this area. METHODS: In total, cDNA from 1541 ticks (Dermacentor spp...
March 20, 2018: Parasites & Vectors
Frans Jongejan, Bi-Ling Su, Hsiang-Ju Yang, Laura Berger, Judith Bevers, Pin-Chen Liu, Jou-Chien Fang, Ya-Wen Cheng, Charlotte Kraakman, Nadine Plaxton
BACKGROUND: Babesia gibsoni is the predominant tick-borne protozoan blood parasite affecting dogs throughout the Oriental region. Babesia gibsoni is transmitted by Haemaphysalis longicornis, whereas a similar role has been suggested for Rhipicephalus sanguineus. Haemaphysalis longicornis does not occur in Taiwan, but R. sanguineus is widely distributed on dogs. However, clinical cases of babesiosis are mainly restricted to the northern part of the island. The discrepancy between tick distribution and clinical cases stimulated us to investigate the tick species distribution on dogs in northern Taiwan, with the aim to identify the local vector for canine babesiosis...
March 20, 2018: Parasites & Vectors
Maayan Margalit Levi, Yaarit Nachum-Biala, Roni King, Gad Baneth
BACKGROUND: Babesia spp. and Hepatozoon spp. are apicomplexan parasites that infect a variety of animals, including canids. Their life-cycle includes an invertebrate hematophagous vector as a definitive host and vertebrates as intermediate hosts. The aims of this study were to investigate the prevalence and risk factors for Babesia spp. and Hepatozoon spp. infections in wild golden jackals (Canis aureus) and red foxes (Vulpes vulpes) in Israel and to compare spleen with blood sample polymerase chain reaction (PCR) for the detection of infection...
March 20, 2018: Parasites & Vectors
Marta Baxarias, Alejandra Álvarez-Fernández, Pamela Martínez-Orellana, Sara Montserrat-Sangrà, Laura Ordeix, Alicia Rojas, Yaarit Nachum-Biala, Gad Baneth, Laia Solano-Gallego
BACKGROUND: The severity of canine leishmaniosis (CanL) due to Leishmania infantum might be affected by other vector-borne organisms that mimic its clinical signs and clinicopathological abnormalities. The aim of this study was to determine co-infections with other vector-borne pathogens based on serological and molecular techniques in dogs with clinical leishmaniosis living in Spain and to associate them with clinical signs and clinicopathological abnormalities as well as disease severity...
March 20, 2018: Parasites & Vectors
Na Jia, Yuan-Chun Zheng, Jia-Fu Jiang, Rui-Ruo Jiang, Bao-Gui Jiang, Ran Wei, Hong-Bo Liu, Qiu-Bo Huo, Yi Sun, Yan-Li Chu, Hang Fan, Qiao-Cheng Chang, Nan-Nan Yao, Wen-Hui Zhang, Hong Wang, Dong-Hui Guo, Xue Fu, Ya-Wei Wang, Peter J Krause, Ju-Liang Song, Wu-Chun Cao
Background: Human babesiosis is an emerging health problem in China. Methods: Babesia were identified in ticks, sheep, and humans in northeastern China using PCR followed by genetic sequencing. We enrolled residents of Heilongjiang and Jilin provinces between 2015 and 2016 who reported a recent tick bite and experienced a viral like illness after recent tick bite or were healthy residents. We evaluated them for Babesia infection using history; physical examination; and blood smear, PCR, and genetic sequencing...
March 10, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Gina M Gallego-Lopez, Audrey O T Lau, Wendy C Brown, Wendell C Johnson, Massaro W Ueti, Carlos E Suarez
No abstract text is available yet for this article.
March 12, 2018: Parasites & Vectors
Clement Isaac, Benjamin Igho Igbinosa, John Asekhaen Ohiolei, Catherine Eki Osimen
Some small mammals occur as household pests and harbour a number of parasites that could be of public health importance. This study profiled the helminth and protozoan parasites in trapped small mammals within and around human dwelling places (houses) located across 4 major towns (Auchi, Benin, Ekpoma, and Uromi) and environs in Edo state, Nigeria. Six genera ( Apodemus sp., Crocidura sp., Mastomys natalensis , Mus musculus , Rattus sp., and Sorex sp.) were identified from 502 trapped small mammals. Overall, M...
February 2018: Korean Journal of Parasitology
Yusuke Sayama, Aya Zamoto-Niikura, Chieko Matsumoto, Masayuki Saijo, Chiaki Ishihara, Keiji Matsubayashi, Tadashi Nagai, Masahiro Satake
BACKGROUND: Human babesiosis is caused mainly by Babesia microti and has recently become a public health concern due to an increase in transfusion-transmitted infection. Thus, the development of an antibody detection method with high specificity and sensitivity is a priority. Seroreactivity against B. microti has been reported to be highly specific not only to B. microti lineages but also to sublineages. This study aimed to elucidate the human antibody reactivity against various lineages, including US, Kobe, and Hobetsu, and sublineages (North America and East Asia) in the US lineage...
March 9, 2018: Transfusion
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