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Torque teno sus virus infection in suckling piglets from Brazilian pig herds

机译：巴西猪群的乳猪中的扭矩Tens sus病毒感染

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Torque teno sus virus (TTSuV) is responsible for the infection of pig herds around the world. The aim of this study was to analyse the presence of natural infection by both species of TTSuV in suckling piglets from major pig-producing regions of Brazil. Faecal samples (n = 135) from 1 to 3-week-old suckling piglets from the Southern, Southeast and Midwest regions of Brazil were analysed by PCR assay to detect TTSuV1 and 2. TTSuV1 and 2 DNA was identified in 65 (48.1 %) and 23 (17 %) of piglet faecal samples, respectively. Co-infection by both species of TTSuV was detected in 17 (12.6 %) samples. Detection of TTSuV1 was significantly higher than that of TTSuV2 in the three Brazilian regions together (p < 0.05). Based on age of animals, TTSuV1 infection was statistically higher than TTSuV2 in each age group (p < 0.05). For all of the age groups together, no statistical difference was detected in the number of TTSuV1 and 2 positive results (p > 0.05). These findings revealed that TTSuV infection has disseminated in pig herds from different geographic Brazilian regions, and the presence of TTSuV in suckling piglet faecal samples suggested the early infection by the virus and the potential of these animals in spreading the virus.
机译：Tenus sus Tenque sus病毒（TTSuV）导致世界范围内的猪群感染。这项研究的目的是分析来自巴西主要产猪区的乳猪的两种TTSuV自然感染的存在。对巴西南部，东南部和中西部地区1至3周龄的乳猪的粪便样本（n = 135）进行PCR分析，以检测TTSuV1和2。在65（48.1％）中鉴定出TTSuV1和2 DNA和23（17％）仔猪粪便样本。在17个（12.6％）样品中检测到两种TTSuV的共感染。在巴西的三个地区中，TTSuV1的检出率显着高于TTSuV2（p <0.05）。根据动物年龄，每个年龄组的TTSuV1感染率均高于TTSuV2（p <0.05）。对于所有年龄组，TTSuV1和2例阳性结果的数量均无统计学差异（p> 0.05）。这些发现表明，TTSuV感染已在来自巴西不同地理区域的猪群中传播，并且在乳猪粪便样品中存在TTSuV，表明该病毒已被早期感染，并且这些动物具有传播病毒的潜力。

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