01916nas a2200301 4500008004100000245016000041210006900201260001200270300001200282490000700294520085300301653001301154653000901167653002401176653000901200653002001209100003401229700002901263700002901292700003301321700003101354700003401385700002201419700002801441700003501469700001901504856009101523 2021 eng d00aMolecular Diagnosis and Prevalence of Trypanosoma vivax (Trypanosomatida: Trypanosomatidae) in Buffaloes and Ectoparasites in the Brazilian Amazon Region0 aMolecular Diagnosis and Prevalence of Trypanosoma vivax Trypanos c01-2021 a403-4070 v583 a

Trypanosoma vivax Ziemann is a parasite that affects both wild and domestic ungulates and is transmitted mechanically via tabanids and other blood-sucking insects in the Americas. A total of 621 blood samples from water buffaloes (Bubalus bubalis (Linnaeus) (Artiodactyla: Bovidae), and 184 ectoparasite samples (Amblyomma cajennense (Fabricius) sensu stricto and Rhipicephalus (Boophilus) microplus (Canestrini) (Acari: Ixodidae), and Haematopinus tuberculatus (Burmeister) (Phthiraptera: Haematopinidae)) were obtained from 60 farms in the State of Pará, Brazilian Amazon. Twelve buffalo blood samples (1.89%) and 11 ectoparasites (6%) were positive for T. vivax based on the cathepsin L-like gene. All sequences were 99% similar to T. vivax from northeastern Brazil (EU753788) in amplified PCR assays on each of the hosts tested.

10aAmazonia10alice10amolecular diagnosis10aTick10atrypanosomiasis1 aDyonisio, Gustavo, Henrique S1 aBatista, Helder, Ribeiro1 ada Silva, Ryan, Emiliano1 aAzevedo, Roberta, Carvalho d1 aCosta, Jaciara, de Oliveir1 aManhães, Ingridi, Braz de Ol1 aTonhosolo, Renata1 aGennari, Solange, Maria1 aMinervino, Antonio, Humberto H1 aMarcili, Arlei uhttps://academic.oup.com/jme/article-abstract/58/1/403/5874711?redirectedFrom=fulltext02975nas a2200301 4500008004100000245011200041210006900153260001400222300000900236490000700245520197500252653002102227653001202248653001702260653000902277653000902286100002902295700002302324700003802347700002802385700003102413700002802444700001902472700003202491700003002523700003502553856008502588 2018 eng d00aPrevalence and risk factors associated with ectoparasite infestation of buffaloes in an Amazonian ecosystem0 aPrevalence and risk factors associated with ectoparasite infesta cJune 2018 a9 pp0 v113 a

Background: The water buffalo (Bubalus bubalis) is well adapted in some regions of the Amazon. Of all Brazilian states, Pará contains the largest number of this species, with 510,000 animals, approximately 38% of the Brazilian buffaloes. Despite the socioeconomic importance of bubaline farming in the northern region, little is known about the prevalence of ectoparasites that affect buffalo herds. This study aimed to identify the species of buffalo ectoparasites in the municipality of Santarém, Pará, and to determine possible risk factors related to ectoparasitic infestation. A cross-sectional study was conducted by sampling 60 rural properties and 621 buffaloes for ectoparasites. When present, ectoparasites were collected for subsequent identification.
Results: Of all the animals sampled, 18.5% (115/621) had ectoparasites, 7.8% (49/621) had ticks from the species Rhipicephalus (Boophilus) microplus and Amblyomma cajennense (sensu stricto), and 11.5% (72/621) had lice from the Haematopinus tuberculatus species. Six animals presented mixed infestations of ticks and lice. Among the sampled farms, 51.6% (31/60) had at least one animal infested with ectoparasites. The prevalence of ticks and lice on buffaloes was associated with the farm site, with higher prevalence (11.5% ticks, 15.4% lice) in animals at dry land (OR: 16.7 and 5.7 for ticks and lice, respectively) when compared with floodplains (0.5% ticks, 3.4% lice). Buffaloes aged 1 to 12 months had more ticks whereas buffaloes aged 13 to 24 months had more lice (P < 0.05).
Conclusions: Buffaloes bred in the municipality of Santarém present different levels of tick and lice infestation according to the direct influence of Amazon ecosystem characteristics. The floodplain environment, widely used for buffalo farming, contributes toward minor ectoparasite infestations in these animals.

10aAmazon ecosystem10abuffalo10aectoparasite10alice10aTick1 aBatista, Helder, Ribeiro1 aSarturi, Cristiane1 aStelmachtchuk, Felipe, Nascimento1 aOliveira, Daniel, Rocha1 aMorini, Adriana, Caroprezo1 aGennari, Solange, Maria1 aMarcili, Arlei1 aBastos, Fernanda, Aparecida1 aBarata, Lauro, Euclides S1 aMinervino, Antonio, Humberto H uhttps://parasitesandvectors.biomedcentral.com/articles/10.1186/s13071-018-2917-2