Biometry of Trypanosoma vivax found in a calf in the state of Maranhão, Brazil

Guerra, Rita de Maria Seabra Nogueira de Candanedo; Júnior, Assuero Batista Feitosa; Santos, Hamilton Pereira; Abreu-Silva, Ana Lúcia; Santos, Andreia

doi:10.1590/s0103-84782008000300041

Cited by 27 publications

(16 citation statements)

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“…In Brazil, T. vivax was initially reported in Pará State, where the parasite was detected in a water buffalo showing fever and emaciation (Shaw and Lainson 1972). Ever since, T. vivax has already been related in cattle herds of several Brazilian states from northern to southern regions (Serra Freire 1981;Silva et al 1996Silva et al , 2009Paiva et al 2000a;Linhares et al 2006a, b;Guerra et al 2008;Batista et al 2007Batista et al , 2009Cuglovici et al 2010).…”

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confidence: 99%

Highly debilitating natural Trypanosoma vivax infections in Brazilian calves: epidemiology, pathology, and probable transplacental transmission

et al. 2011

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Clinical, epidemiological, and pathological aspects of trypanosomiasis caused by Trypanosoma vivax in calves were reported for the first time in northeast Brazil. Clinical and epidemiological data, packed cell volumes (PCV), and parasitemia were assessed in 150 calves in May 2009 (rainy season-survey 1) and in 153 calves in November 2009 (dry season-survey 2) in three farms (A, B, and C). Prevalence of T. vivax in calves examined in the survey 1 was 63.3%, 65.0%, and 80.0% in farms A, B, and C, respectively. Morbidity varied from 63.3% to 80%, mortality from 15% to 30% and lethality from 23% to 37.5%. In survey 1, for all farms, high parasitemia (from 30.3 to 26.2 × 10(6) parasites/mL), fever (from 39.8 to 40.3°C), low PCV (from 15.7% to 18.1%), and body score (from 2.5 to 3.5) were detected. Calves showed depression, weight loss, pale mucous membranes, enlarged lymph nodes, edema of the dewlap, cough, coryza, and diarrhea. The animals from farms A and B were treated with diminazene aceturate. Six months after, in survey 2, non-treated calves from farm C showed values for prevalence (81.82), morbidity (81.82), mortality (12.73), and lethality (15.55) similar to those in survey 1 (P > 0.05). Also in survey 2, four calves aging merely 1-3 days old presented high parasitemia levels (from 32 × 10(6) to 74 × 10(6) parasites/mL), suggesting transplacental transmission. In conclusion, trypanosomiasis by T. vivax constitutes high prevalent disease for calves raised in Brazilian semiarid and may have transplacental transmission.

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Section: Introductionmentioning

confidence: 99%

Highly debilitating natural Trypanosoma vivax infections in Brazilian calves: epidemiology, pathology, and probable transplacental transmission

et al. 2011

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“…vivax has now been diagnosed in several states in Brazil: Pará, Amapá, Mato Grosso, Mato Grosso do Sul, Paraíba, Maranhão, Tocantins, Minas Gerais, São Paulo, Rio Grande do Sul, Pernambuco and Alagoas (SERRA-FREIRE, 1981;SILVA et al, 1996SILVA et al, , 2009PAIVA et al, 2000;BATISTA et al, 2007;GUERRA et al, 2008;LINHARES et al, 2006;CARVALHO et al, 2008;CADIOLI et al, 2012;PIMENTEL et al, 2012;ANDRADE et al, 2015). Although the state of Goiás borders other states where this agent has already been diagnosed (Mato Grosso do Sul, Mato Grosso, Minas Gerais and Tocantins), this state has until now been considered free of T. vivax.…”

Section: Introductionmentioning

confidence: 99%

First outbreak and subsequent cases of Trypanosoma vivax in the state of Goiás, Brazil

Bastos

Faria

Madrid

et al. 2017

Rev. Bras. Parasitol. Vet.

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Trypanosomiasis caused by Trypanosoma vivax has increased the reports in Brazil in the last decade. An outbreak is herein first reported in the state of Goiás, from May 2016 to January 2017. The outbreak start occurred in the city of Ipameri (Goiás) after the introduction of 18 auctioned cows from the state of Minas Gerais. Direct parasitological test (blood smears) and polymerase chain reactions targeting the catL genes diagnosed T. vivax infection. Fifty six cows from a herd of 161 were infected; 12 died during the outbreak and 44 animals persistently positive (by blood smears) even after chemical treatment were discarded. After this first case, five other cases were detected in state of Goiás. The spread of this disease can be linked to the commercialization of animals carrying T. vivax, allied to the iatrogenic transmission practice, using a single needle and syringe for all cows, during oxytocin administration before each milking.Keywords: Bovines, lactating cows, oxytocin, PCR, Trypanosomiasis, T. vivax. ResumoTripanossomíase causada por Trypanosoma vivax tem sido reportada em várias regiões do Brasil na última década. Um surto é aqui reportado no Estado de Goiás, de maio de 2016 a janeiro de 2017. O início do referido surto ocorreu na cidade de Ipameri (Goiás) depois da introdução de 18 vacas Girolando, provenientes do Estado de Minas Gerais. Pelo exame parasitológico direto (esfregaço sanguíneo) e pela reação em cadeia pela polimerase, identificou-se a infecção por T. vivax nos animais. Cinquenta e uma vacas de um rebanho de 161 foram infectadas; 12 morreram durante o surto e 44 animais permaneceram positivos (pelo esfregaço sanguíneo) mesmo recebendo tratamento químico (diminazene), e foram descartadas. Após esse primeiro caso, foram detectados outros cinco casos no Estado de Goiás. A disseminação dessa doença pode estar ligada à comercialização de animais portadores de T. vivax, aliada à prática de transmissão iatrogênica, utilizando-se uma única agulha e seringa para, todas as vacas, durante a administração da oxitocina antes de cada ordenha.Palavras-chave: Bovinos, vacas em lactação, oxitocina, PCR, Tripanossomíase, T. vivax.

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“…Em seguida, o protozoário foi detectado nos estados do Amapá (Serra-Freire 1981), Mato Grosso ( Osório et al 2008), Tocantins (Linhares et al 2006), Minas Gerais , Paraíba (Batista et al 2007), Maranhão (Guerra et al 2008) e recentemente no estado de Pernambuco (Pimentel et al 2012).…”

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Detecção de anticorpos IgG anti-Trypanosoma vivax em bovinos através do teste de Imunofluorescência indireta

et al. 2013

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RESUMO.-Trypanosoma vivax infecta uma grande variedade de animais ungulados selvagens e domésticos, podendo causar grande impacto na produção de ruminantes. Este trabalho teve como objetivo avaliar a detecção de anticorpos IgG anti-Trypanosoma vivax em bovinos provenientes do estado de Pernambuco, Brasil. Para tanto, foram analisadas 2,053 amostras de soro sanguíneo de bovinos provenientes de rebanhos de municípios do estado de Pernambuco, os quais foram analisados através da Reação de Imunofluorescência Indireta. Das amostras testadas 13,93% (286/2.053) foram reagentes para anticorpos IgG anti-Trypanosoma vivax. As freqüências, por mesorregião, variaram de 11,90% a 15,99%. Assim, os dados obtidos permitiram a caracterização do estado de Pernambuco como uma área de instabilidade enzoótica e sugere que o estado Pernambuco é área endêmica para Trypanosoma vivax e este parasito está distribuído por todo o estado.

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Biometry of Trypanosoma vivax found in a calf in the state of Maranhão, Brazil

Abstract: ABSTRACT

Cited by 27 publications

References 7 publications

Highly debilitating natural Trypanosoma vivax infections in Brazilian calves: epidemiology, pathology, and probable transplacental transmission

Highly debilitating natural Trypanosoma vivax infections in Brazilian calves: epidemiology, pathology, and probable transplacental transmission

First outbreak and subsequent cases of Trypanosoma vivax in the state of Goiás, Brazil

Detecção de anticorpos IgG anti-Trypanosoma vivax em bovinos através do teste de Imunofluorescência indireta

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