Gonzales, CarmenVargas-Calla, AnaGomez-Puerta, Luis A.Robles, Katherine...
3页
查看更多>>摘要：Toxoplasmosis is an important zoonotic disease worldwide caused by the intracellular parasite Toxoplasma gondii. Cats, being hosts, act as a good sentinel for this disease. Thus, the objective of this study was to determine the seroprevalence of T. gondii in cats by examining serum from seven districts of Metropolitan Lima, Peru. We collected and analyzed 303 cat serum samples, and the owners answered a questionnaire about age, gender, lifestyle (indoors only and outdoors access) and feeding (commercial and home food). The samples were tested using indirect hemagglutination (IHA) for detection of antibody IgM and IgG. Among the animals analyzed, we found 52 (17.2%, 95% CI: 13.1% -21.9%) seropositive cats to T. gondii, of which one corresponded to acute infection (IgM) and 51 to chronic infections (IgG). In addition, the presence of anti-T. gondii antibodies was associated with feeding commercial food and living outdoors access. Our results concluded that T. gondii infections are common in cats with owners in Metropolitan Lima and will be useful to future epidemiological studies.
查看更多>>摘要：Vector-borne diseases represent a real threats worldwide, in reason of the lack of vaccine and cure for some diseases. Among arthropod vectors, mosquitoes are described to be the most dangerous animal on earth, resulting in an estimated 725,000 deaths per year due to their borne diseases. Geographical position of Algeria makes this country a high risk area for emerging and re-emerging diseases, such as dengue coming from north (Europe) and malaria from south (Africa). To prevent these threats, rapid and continuous surveillance of mosquito vectors is essential. For this purpose we aimed in this study to create a mosquito vectors locale database using MALDI-TOF mass spectrometry technology for rapid identification of these arthropods. This methodology was validated by testing 211 mosquitoes, including four species (Aedes albopictus, Culex pipiens, Culex quinquefasciatus, and Culiseta longiareolata), in two northern wilayahs of Algeria (Algiers and Bejaia). Species determination by MALDI TOF MS was highly concordant with reference phenotypic and genetic methods. Using this MALDI-TOF MS tool will allow better surveillance of mosquito species able to transmit mosquito borne diseases in Algeria.
Carvalho, Andrea M.Ferreira, Francisco C.Araujo, Andreina C.Hirano, Liria Queiroz Luz...
4页
查看更多>>摘要：Avian Haemosporidian parasites -Plasmodium, Haemoproteus, Leucocytozoon and Fallisia -have a wide distri-bution except for Antarctica. Leucocytozoon sp. has been poorly described in Brazil, and few studies have indi-cated infections in birds from the Atlantic Forest, Pantanal, Pampa and Amazon biomes. This study describes, for the first time, the occurrence of Leucocytozoon infection in red-legged seriemas (Cariama cristata) in the Brazilian savanna (Cerrado biome) using molecular diagnosis. Leucocytozoon spp. lineage CARCRI01 was detected in three C. cristata, a non-migratory bird, confirming transmission in mid-elevation areas in central Brazil. Further studies are needed to certify whether infections in red-legged seriemas were not abortive and to elucidate Leucocytozoon infection at low altitudes in the Brazilian lands.
Romero, AgustinGarcia, Juan A.Castells, DanielGayo, Valeria...
4页
查看更多>>摘要：Here, we describe a spontaneous outbreak of strongyloidiasis (Strongyloides papillosus) in sheep in Uruguay. In a flock of 150 lambs, 60 animals became ill and 12 died within 3 weeks. Affected animals showed weakness, weight loss, enophthalmos and, in some cases, sudden death. Postmortem examination revealed muscle atrophy, dehydration, and small intestines with a foamy and liquid content. Histological examination of the duodenum and the jejunum showed a thick mucosa with severe villous atrophy, mononuclear mixed infiltrate in the lamina propria, and a large number of nematodes embedded in the mucosa, with numerous granulomas in the lamina propia. Small intestinal content analysis showed a total of 13,200 female nematodes in the duodenum and 2000 in the jejunum, identified as Strongyloides papillosus (Strongyloididae). This parasite has long been considered to behave as a commensal parasite or at least to cause significant disease only when present in large numbers. This report shows that Strongyloides papillosus can be highly pathogenic in sheep.
Islam, SaifulAl-Amin, Hasan MohammadSazed, Saiful ArefeenIslam, Kazi Mehetazul...
4页
查看更多>>摘要：Tick and tick-borne diseases cause significant impediments to livestock health and production; however, information on the tick fauna is significantly limited in Bangladesh. This study was aimed to investigate tick fauna in Sylhet sub-district of Bangladesh targeting animal hosts and environment. A total 1427 ticks were collected by using blunt forceps, hand picking and dragging techniques from host body and environment during October 2018 to March 2019. Identification was made using morpho-taxonomical keys. Eight species from three separate genera of tick, namely Rhipicephalus(asymptotic to Boophilus) microplus, Rhipicephalus decoloratus, R. annulatus, R. sanguineus, Haemaphysalis intermedia, H. bispinosa, H. leachi, and Amblyomma variegatum were identified. Rhipicephalus spp. was dominant in the hosts whereas, Haemaphysalis spp. was the most prevalent in the environment. This study for the first-time enlisted ticks in two different ecological settings in Sylhet, Bangladesh. Further investigations should be made to evaluate the burden and control the associated socio-economic risk.
NSTL
Elsevier