Eddicks Matthias, Ladurner Avilés Sarah, Frauscher Stefanie, Krejici Roman, Reese Sven, Fux Robert, Ritzmann Mathias
Clinic for Swine at the Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-Universität München, 85764 Oberschleissheim, Germany.
Ceva Sante Animale, 33501 Libourne, France.
Vet Sci. 2025 Jul 30;12(8):717. doi: 10.3390/vetsci12080717.
The occurrence of PCV2 genotypes in domestic pig production is a dynamic process that undergoes continuous change. Beginning with PCV2a as the first recognized genotype, PCV2b, and subsequently PCV2d, has become the most prevalent one over time. The present study provides an update on the prevalence of the three major PCV2 genotypes in Germany in 2024. A total of 87 fattening farms were randomly selected, proportionally based on farm density within the respective federal states. On each farm, oral fluid samples (OFs) were collected from approximately 100 pigs aged 18 (±1) weeks. Oral fluids (OFs) were pooled and screened for PCV2 DNA by qPCR. Positive samples were subsequently examined by genotype specific qPCR. In total, 31.0% (27/87) of all farms were identified as PCV2-positive. PCV2a was detected in 8.0% (7/87) of farms, while 3.4% (3/87) tested positive for both PCV2a and PCV2d. Overall, 11.5% (10/87) of all farms were PCV2d-positive. No significant effect of vaccination status of the pigs on the viral load or frequency of detection of PCV2 DNA was detected.
家猪生产中猪圆环病毒2型（PCV2）基因型的出现是一个不断变化的动态过程。最初，PCV2a是第一个被识别的基因型，随后PCV2b出现，随着时间的推移，PCV2d已成为最普遍的基因型。本研究提供了2024年德国三种主要PCV2基因型流行情况的最新信息。根据各联邦州内的猪场密度按比例随机选择了总共87个育肥猪场。在每个猪场，从大约100头18（±1）周龄的猪中采集口腔液样本（OF）。将口腔液（OF）混合，并通过qPCR检测PCV2 DNA。随后对阳性样本进行基因型特异性qPCR检测。总共，所有猪场中有31.0%（27/87）被确定为PCV2阳性。在8.0%（7/87）的猪场中检测到PCV2a，而3.4%（3/87）的猪场同时检测到PCV2a和PCV2d呈阳性。总体而言，所有猪场中有11.5%（10/87）为PCV2d阳性。未检测到猪的疫苗接种状态对PCV2 DNA病毒载量或检测频率有显著影响。
