Babesiosis and anaplasmosis in dairy cattle in Northeastern Brazil

Souza, Francisco de Assis Leite; Braga, Juliana Fortes Vilarinho; Pires, Lidiany Viana; Carvalho, Ciro José Sousa de; Costa, Érica Azevedo; Ribeiro, Múcio Flávio Barbosa; Santos, Renato L.; Silva, Silvana

doi:10.1590/s0100-736x2013000900002

Cited by 12 publications

(25 citation statements)

References 18 publications

(25 reference statements)

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“…(QUINTÃO-SILVA & RIBEIRO, 2003). In this region, an imbalance in the parasite/host relationship probably occurred, facilitating the appearance of new clinical cases and maintaining the region as an area of enzootic instability, which had already been observed in other studies (QUINTÃO-SILVA & RIBEIRO, 2003;SOUZA et al, 2013).…”

Section: Resultsmentioning

confidence: 53%

“…This study was conducted from June 2013 to June 2014 on two farms located 15 km apart; each farm had different management practices for dairy farming (Table 1); and the farms were located in the Litoral Piauiense micro region of Northeastern Brazil in an area of enzootic instability for babesiosis, as described by Souza et al (2013). Farm A, which is in the municipality of Buriti dos Lopes-PI, is located at latitude 3° 6 '9 "S and longitude 41 ° 53' 38" W, has a total area of 850 ha, has a seroprevalence of 55.5% for B.bigemina and has a seroprevalence of 33.3% for B. bovis.…”

Section: Location and Climatic Conditionsmentioning

confidence: 99%

“…Farm A, which is in the municipality of Buriti dos Lopes-PI, is located at latitude 3° 6 '9 "S and longitude 41 ° 53' 38" W, has a total area of 850 ha, has a seroprevalence of 55.5% for B.bigemina and has a seroprevalence of 33.3% for B. bovis. Farm B is in the municipality of Parnaíba-PI, is located at latitude 2° 58 '56 "S and longitude 41° 47' 36" W, has an area of 95 ha, has a seroprevalence of 23.1% for B. bigemina and has a seroprevalence of 30.7% for B. bovis (SOUZA et al, 2013).…”

Section: Location and Climatic Conditionsmentioning

confidence: 99%

“…The molecular detection of B. bigemina and B. bovis to determine primo-infection was performed by PCR using GAU7/GAU6 and GAU9/GAU10, respectively, which are primers previously described by Linhares et al (2002) Souza et al (2013), were used as negative and positive control, respectively, for each PCR reaction performed in this study.…”

Section: Collection Procedures and Laboratory Testsmentioning

confidence: 99%

“…In Northeastern Brazil, predominantly endemic areas unstable for babesiosis include cities such as Garanhuns-PE (ALVES, 1987) and Uauá-BA (BARROS et al, 2005); the semi-arid region of Paraíba ; and the middle-north area of Brazil (SOUZA et al, 2013). In the latter area, babesiosis is certainly one of the main diseases that affect cattle, which may facilitate outbreaks (SOUZA et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Dynamics of natural infection by Babesia bovis and Babesia bigemina in dairy cattle from an enzootic instability area in Northeastern Brazil

Souza

Liarte

Castro

et al. 2018

Rev. Bras. Parasitol. Vet.

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This study aimed to determine the dynamics of natural infection in the transmission of Babesia spp. to cattle in an enzootic instability area in Northeastern Brazil. Blood samples were collected from 30 calves located on two dairy farms to determine the packed cell volume (PCV) and the timing of the primo-infection using polymerase chain reaction (PCR) and their association with climatic factors and management practices. On Farm A, the determination of primo-infection was observed on average at 249.4 (±24.42) days of age for B. bigemina and at 252.6 (±17.07) days of age for B. bovis; there was no significant difference between the times of infection (P> 0.05). The infection coincided with a period of high rainfall in the region. On Farm B, primo-infection infection was not observed. There was no infection by Babesia spp. on Farm B due to the intensive use of acaricides that led to an absence of ticks. There was no significant difference between the average PCV of animals from Farms A and B (P> 0.05). The management practices on the properties, in addition to the weather conditions influenced the exposure of the animals to disease vectors and may have contributed to the maintenance of this enzootic area in Northeastern Brazil.

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Section: Resultsmentioning

confidence: 53%

Section: Location and Climatic Conditionsmentioning

confidence: 99%

Section: Location and Climatic Conditionsmentioning

confidence: 99%

Section: Collection Procedures and Laboratory Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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