Characterization of cattle tick fever in calves from the northwestern region of Minas Gerais, Brazil

Bahia, Michele; Silva, Jullyana de Souza; Gontijo, Iany Santos; Cordeiro, Matheus Dias; Santos, Priscilla Nunes dos; Silva, Cláudia Bezerra da; Nicolino, Rafael Romero; Mota, Diego Azevedo; Silva, Jenevaldo Barbosa da; Fonseca, Adivaldo Henrique da

doi:10.1590/s1984-29612020011

Cited by 9 publications

(3 citation statements)

References 42 publications

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“…Regional disparities in babesiosis prevalence, as observed in this study, align with broader scientific evidence. Studies such as those by Bhat et al (2015), Farooqi et al (2017a), Bahia et al (2020), Shoaib et al (2022) corroborate the notion that geographical variations play a significant role in the prevalence of Babesia infections. Specifically, Farooqi et al (2017b) provide insights into regional prevalence patterns in Pakistan, while Bhat et al (2015) emphasizes the influence of geographical factors on babesiosis rates.…”

Section: Discussionmentioning

confidence: 60%

Assessment of Babesia spp. prevalence in various domestic animals across Southern Punjab, Pakistan

Tariq,

Badshah,

Khan

et al. 2024

Braz. J. Biol.

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Parasitic diseases, notably babesiosis, exert a substantial impact on the global cattle industry, posing challenges to commerce, economies, and human health. This study, conducted in Southern Punjab, Pakistan, aimed to assess the prevalence of Babesia spp. across various livestock species using microscopic and PCR methods. A total of 180 blood samples (60 from each district) were systematically collected from apparently healthy animals, with 36 samples obtained from each domestic animal species, including camel, cattle, buffalo, goat, and sheep, noting that 12 samples were collected from each district for each animal species. Overall prevalence was determined to be 32.8% (59/180), with varying rates among species: 25.0% in cattle, 41.66% in buffalo, 30.55% in goats, 33.3% in sheep, and 33.3% in camels. Microscopic examination revealed slightly varied infection rates among large and small domestic animals (22.2%), while PCR results indicated a 32.8% overall infection rate in both large and small domestic animals, with no statistical significance. District-wise analysis showed regional variations, with Muzaffargarh recording a prevalence rate of 23.33% through microscopic examination, while Lodhran and Bahawalpur recorded 21.67%. PCR results revealed higher rates (38.33%, 26.67%, and 33.33%, respectively), underlining the importance of employing PCR for accurate detection. Examining ruminant types, large ruminants exhibited a 32.4% infection rate, while small domestic animals showed 33.3%, with no significant difference (p=0.897). District-wise prevalence showcased significant variation, with Muzaffargarh demonstrating a 25% prevalence, Lodhran 22%, and Bahawalpur 22%, through microscopic examination. PCR results displayed 38.33%, 27%, and 33.3%, respectively, with no statistical significance. Detailed analysis of individual districts highlighted variations in infection rates among camels, cattle, buffalo, goats, and sheep. The binomial test indicated significant differences through microscopic analysis (P=0.011) but non-significant variations through PCR (P=0.065), emphasizing the precision of PCR. Regional variations in prevalence, notably with Punjab exhibiting the highest frequency (33.87%) and KPK the lowest (13.24%), suggest potential influences from varying veterinary practices and environmental factors. This study underscores the pivotal role of PCR alongside microscopy for accurate babesiosis diagnosis. These findings contribute to the broader understanding of babesiosis prevalence, emphasizing the necessity of advanced molecular techniques for informed control measures.

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Section: Discussionmentioning

confidence: 60%

Assessment of Babesia spp. prevalence in various domestic animals across Southern Punjab, Pakistan

Tariq,

Badshah,

Khan

et al. 2024

Braz. J. Biol.

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“…A. L. Souza et al, 2018;Giglioti et al, 2021 Animals exhibiting clinical symptoms were reported in 17 herds due to A. marginale (n = 218 animals), in two herds due to B. bovis and B. bigemina (n = 5 animals), and 15 symptomatic cattle within a single herd were diagnosed using primers for Babesia spp. Symptomatic treatment was discussed in five articles (Bahia et al, 2020;Silva et al, 2016;Garcia et al, 2022;Reckziegel et al, 2022;Alberton et al, 2015), and chemoprophylaxis to prevent babesiosis was reported only on one farm (F. A. L. Souza et al, 2018) in cattle at 70 days of age. Tick control was reported in three studies (Casa et al, 2020;Andreotti et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

Revisão sistemática sobre diagnóstico molecular da tristeza parasitária bovina no Brasil: ocorrência e oportunidades futuras

Rahal,

Martins,

Feijó

et al. 2024

Sem. Ci. Agr.

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A bovinocultura brasileira enfrenta diversos desafios, dentre esses, as doenças transmitidas por vetores que geram prejuízos significativos pela ampla disseminação no país. As técnicas moleculares são mais sensíveis na identificação de animais persistentemente infectados. Dessa forma, o objetivo deste trabalho foi compilar dados referentes à ocorrência de Anaplasma marginale, Babesia bigemina e Babesia bovis, causadores da tristeza parasitária bovina (TPB), detectados por técnicas moleculares, identificando lacunas e oportunidades para futuras pesquisas no Brasil. Para isso, foi conduzida uma revisão sistemática, onde os principais critérios de inclusão foram: estudos realizados com amostras do Brasil; utilização de amostras de bovinos naturalmente infectados; dados exatos sobre número ou percentual de animais positivos; número de amostras por rebanho ≥ 10; e informações, pelo menos, do estado de origem das amostras. Ao todo, 38 estudos foram incluídos na revisão, utilizando-se de técnicas de PCR convencional (multiplex PCR, PCR, nPCR e snPCR) e PCR quantitativa e semiquantitativa (qPCR e HRM). As faixas de ocorrência para as espécies foram: 35 a 98,78% para A. marginale; 8,19 a 86,25% para B. bigemina; e de 7,32 a 95,47% para B. bovis. Os maiores percentuais de ocorrência de A. marginale e B. bovis foram no estado de RO, e de B. bigemina foi no estado de SP. Apesar da quantidade de dados encontrados, ainda são evidentes inúmeras oportunidades de direcionamento para futuras pesquisas, principalmente no que diz respeito ao uso de técnicas moleculares e quantificação das perdas nos rebanhos de maior ocorrência da TPB.

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“…The economic losses caused by R. microplus in Brazil are estimated to equal 3.24 billion dollars per year (Grisi et al 2014). Other factors involved include the bovine babesiosis and anaplasmosis complex, which consists of a complex involving the protozoa Babesia bovis and Babesia bigemina and the bacteria Anaplasma marginale (Bahia et al 2020) and tick resistance to most chemical classes available for its control (Reck et al 2014;Higa et al 2015;Maciel et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Sensitivity of Senepol and Caracu breeds to parasitism by Rhipicephalus microplus

Piña

Zimmermann

Garcia

et al. 2021

saa

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Taurine breeds and animals crossbred for genetic resistance to Rhipicephalus microplus have been the focus of several studies aimed at producing better responses of cattle to tick infestations and seeking to reduce treatment costs and improve the quality of bovine byproducts. Another way to increase gains is the introduction of taurine breeds with the goal of obtaining morphological and physiological characteristics more adapted to production. Although several studies have compared taurine and zebu breeds, little is known about the differences found within the taurine group. Therefore, the present study aimed to evaluate the sensitivity of the Senepol and Caracu breeds to artificial R. microplus infestations. For this purpose, a stall test was conducted on 16 Caracu and 14 Senepol bulls. The animals were subjected to artificial infestation with a total of 15,000 R. microplus larvae per animal. The Senepol group accounted for 71.7% of the retrieved engorged female ticks. The biological parameters analyzed that showed a significant difference included the mean number of engorged female ticks retrieved (p = 0.000), weight of engorged female ticks (p = 0.000), rate of engorged female ticks retrieved (p = 0.03) and egg mass weight (p = 0.032). Thus, the present study demonst rated a higher susceptib ility of the Senepol breed to parasitism by the Asian blue tick than the Caracu breed, providing support for new studies on the subjects of genetic resistance, animal breeding and cattle production.

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Characterization of cattle tick fever in calves from the northwestern region of Minas Gerais, Brazil

Cited by 9 publications

References 42 publications

Assessment of Babesia spp. prevalence in various domestic animals across Southern Punjab, Pakistan

Assessment of Babesia spp. prevalence in various domestic animals across Southern Punjab, Pakistan

Revisão sistemática sobre diagnóstico molecular da tristeza parasitária bovina no Brasil: ocorrência e oportunidades futuras

<p><strong>Sensitivity of Senepol and Caracu breeds to parasitism by <em>Rhipicephalus microplus</em></strong></p>

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