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parasitology, zoonosis, vector

Jamille Mirelle de Oliveira Cardoso, Henrique Gama Ker, Rodrigo Dian de Oliveira Aguiar-Soares, Nádia das Dores Moreira, Fernando Augusto Siqueira Mathias, Levi Eduardo Soares Reis, Bruno Mendes Roatt, Paula Melo de Abreu Vieira, Wendel Coura-Vital, Cláudia Martins Carneiro, Alexandre Barbosa Reis
Canine visceral leishmaniosis (CVL) is a zoonosis of major public health impact caused by organisms of the genus Leishmania which is transmitted to human and animals by phlebotomine sand flies. The skin is the first point of contact with Leishmania parasites for sandy fly vectors and it is considered an important reservoir compartment in infected dogs. The aim of this study was to determine the main histophatologic alterations in ear skin of dogs naturally infected by Leishmania infantum with different clinical status and different degrees of parasitism...
August 30, 2017: Veterinary Parasitology
Martina Miterpáková, Daniela Antolová, František Ondriska, Viliam Gál
Human dirofilariosis is currently considered to be an emerging zoonosis of Central Europe with climate change and globalization playing a key role in its spreading. Additionally, the occurrence of Dirofilaria spp. is strongly subject to a certain number of microfilaremic dogs and the presence of the mosquito vectors. Both conditions are fulfilled in Slovakia. The first human case of autochthonous dirofilariosis in Slovakia was diagnosed in 2007, 2 years after the infection had been observed in the Slovak dog population...
September 2017: Wiener Klinische Wochenschrift
P M Brock, K M Fornace, M Parmiter, J Cox, C J Drakeley, H M Ferguson, R R Kao
The public health threat posed by zoonotic Plasmodium knowlesi appears to be growing: it is increasingly reported across South East Asia, and is the leading cause of malaria in Malaysian Borneo. Plasmodium knowlesi threatens progress towards malaria elimination as aspects of its transmission, such as spillover from wildlife reservoirs and reliance on outdoor-biting vectors, may limit the effectiveness of conventional methods of malaria control. The development of new quantitative approaches that address the ecological complexity of P...
April 2016: Parasitology
Amanda Codeço de Oliveira, Fabiano Borges Figueiredo, Valmir Laurentino Silva, Fernanda Nunes Santos, Marcos Barbosa de Souza, Maria de Fátima Madeira, Tuanne Rotti Abrantes, André Reynaldo Santos Périssé
American visceral leishmaniasis is a vector-borne zoonosis in expansion in Brazil. Dogs are the main urban reservoir. Departing from a case of canine visceral leishmaniasis (CVL) in Jacaré, Niterói, Rio de Janeiro State, an epidemiological canine and entomological study was performed to assess the extension of the disease at the location. Sample was collected around the case and the dogs identified by serological tests (rapid double platform immunochromatographic exams, immunoenzymatic assay/ELISA, indirect immunofluorescence/IFAT)...
July 2015: Revista do Instituto de Medicina Tropical de São Paulo
Servio Urdaneta-Morales
The unprecedented emergence of important public health and veterinary zoonoses is usually a result of exponential population growth and globalization of human activities. I characterized Chagas' disease as an emergent zoonosis in the Caracas Valley (Venezuela) due to the following findings: the presence of reservoirs (Didelphis marsupialis, Rattus rattus) and vectors (Panstrongylus geniculatus, Panstrongylus rufotuberculatus) infected with Trypanosoma cruzi in urbanized or marginalized areas; the elevated contact between P...
2014: Frontiers in Public Health
Willian Marinho Dourado Coelho, Katia Denise Saraiva Bresciani
Leishmaniasis is an important chronic zoonosis caused by protozoa of the genus Leishmania spp. The major vectors of this protozoosis are sand flies, and Lutzomyia longipalpis is considered the main species implicated in the transmission of American Visceral Leishmaniasis in Brazil. The presence of the parasite's deoxyribonucleic acid (DNA) in ectoparasites such as ticks and fleas has prompted speculations about the existence of new vectors in the cycle of leishmaniasis. The aim of this paper is to report the molecular detection of Leishmania spp...
October 2013: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
Monique Paiva de Campos, Denise Amaro da Silva, Maria de Fátima Madeira, Artur Augusto Mendes Velho, Fabiano Borges Figueiredo
In Brazil, American visceral leishmaniasis (AVL) is caused by Leishmania (Leishmania) chagasi and its main vector is Lutzomyia longipalpis. Cases of canine visceral leishmaniasis (CVL) in non-endemic areas have been reported over the last few years throughout the country. The objective of this research note is to describe an autochthonous case of CVL that occurred in the municipality of Volta Redonda, state of Rio de Janeiro, an area where the disease is not endemic, alerting veterinarians and the scientific community to the expansion of this important zoonosis and advising veterinary practitioners on how to deal with a suspicion of CVL...
July 2013: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
Clarisa B Palatnik-de-Sousa
Leishmaniasis is the third most important vector-borne disease worldwide. Visceral leishmaniasis (VL) is a severe and frequently lethal protozoan disease of increasing incidence and severity due to infected human and dog migration, new geographical distribution of the insect due to global warming, coinfection with immunosuppressive diseases, and poverty. The disease is an anthroponosis in India and Central Africa and a canid zoonosis (ZVL) in the Americas, the Middle East, Central Asia, China, and the Mediterranean...
2012: Frontiers in Immunology
Sujeevi S K Nawaratna, Danister J Weilgama, Kosala Rajapaksha
BACKGROUND: Cutaneous leishmaniasis (CL) has been detected with increasing frequency in Sri Lanka in recent years. Leishmania donovani has been identified as the causative agent, but no information is available on vector(s) or reservoir(s). In this paper we present data on the screening of possible reservoirs for evidence of infection. METHODS: Patients with clinically suggestive CL referred from dermatology clinics for a confirmatory diagnosis were examined parasitologically and by PCR...
July 2009: International Journal of Infectious Diseases: IJID
José Rodrigues Coura
The enzootic cycle of Trypanosoma cruzi in the nature is maintained for millions of years, in great part by oral route, through the ingestion of infected triatomines by edentates(Xenarthra), marsupials and primates and by carnivores eating other infected mammals. The other phases of the natural history of Chagas disease--Anthropozoonosis, Zoonosis or Anphixenosis and Zooanthroponosis are more recent. The most ancient human mummies found with DNA of T. cruzi by PCR, from northern Chile and southern Peru, dated of 9...
2006: Revista da Sociedade Brasileira de Medicina Tropical
M M Kliks, N E Palumbo
The principal etiologic agent of human eosinophilic meningitis, Angiostrongylus cantonensis, was first detected in rats in Canton, China in 1933. The first human case was detected on Taiwan in 1944. Epidemic outbreaks were noted on Ponape (E. Caroline Is.) from 1944 to 1948. The disease may present as transient meningitis or a more severe disease involving the brain, spinal cord and nerve roots, with a characteristic eosinophilia of the peripheral blood and CSF. Since 1961 it has been known that human infections are usually acquired by purposeful or accidental ingestion of infective larvae in terrestrial mollusks, planaria and fresh-water crustacea...
January 1992: Social Science & Medicine
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