López-Soria S, Maldonado J, Riera P, Nofrarías M, Espinal A, Valero O, Blanchard P, Jestin A, Casal J, Domingo M, Artigas C, Segalés J
Centre de Recerca en Sanitat Animal (CReSA), UAB-IRTA, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain.
Transbound Emerg Dis. 2010 Jun;57(3):171-9. doi: 10.1111/j.1865-1682.2010.01135.x.
A serosurvey on porcine reproductive and respiratory syndrome virus (PRRSV), swine influenza virus (SIV), Aujeszky's disease virus gE protein (ADV gE), porcine parvovirus (PPV) and porcine circovirus type 2 (PCV2) was carried out in Spanish pig herds. The serosurvey consisted of two studies. First, a retrospective study assessed the proportion of seropositive boar, sow and fattening pig herds and their seroprevalences to PRRSV, SIV, ADV gE and PPV from 2003 to 2005 and to PCV2 from 2000 to 2005. Such information was obtained from routine serologic analyses from two veterinary diagnostic laboratory services. Second, a cross-sectional study in sow and fattening pig herds from 44 farms (without vaccination interferences on serologic analyses) was performed to provide information on seroprevalences and co-seropositivity to PRRSV, SIV, ADV gE and PCV2 (PPV was excluded because of widespread vaccination) and to elucidate their relationships with farm characteristics, management and productive parameters. Similar seroprevalences were observed in both studies, although some variations were obtained, probably because of vaccination schedules, number of tested sera, sampling age and regional variations. Percentage of PRRSV and SIV seropositive herds was over 85% for sows, around 80% for fatteners and around 50% for boar studs. The proportion of ADV gE seropositive sow herds decreased from 41% to 30% between 2003 and 2005, whereas such decrease was from 41% to 33% in fattening pig herds and from 13% to 4% in boar studs PCV2 antibodies were widespread as well as those against PPV; in the latter case, if antibodies were elicited by infection and/or vaccination was not assessed. Concurrent presence of PCV2, PRRSV and SIV antibodies was found in 89% and 66% sow and fattening herds, respectively. No statistical associations were obtained between seroprevalences or co-seropositivity and farm characteristics, management or productive parameters.
在西班牙猪群中开展了一项针对猪繁殖与呼吸综合征病毒（PRRSV）、猪流感病毒（SIV）、伪狂犬病病毒gE蛋白（ADV gE）、猪细小病毒（PPV）和猪圆环病毒2型（PCV2）的血清学调查。该血清学调查由两项研究组成。首先，一项回顾性研究评估了2003年至2005年期间公猪、母猪和育肥猪群中血清阳性群体的比例及其对PRRSV、SIV、ADV gE和PPV的血清阳性率，以及2000年至2005年期间对PCV2的血清阳性率。此类信息来自两家兽医诊断实验室服务机构的常规血清学分析。其次，对来自44个农场的母猪和育肥猪群进行了一项横断面研究（血清学分析不受疫苗接种干扰），以提供有关PRRSV、SIV、ADV gE和PCV2的血清阳性率和共同血清阳性情况的信息（由于广泛接种疫苗，PPV被排除在外），并阐明它们与农场特征、管理和生产参数之间的关系。两项研究中观察到了相似的血清阳性率，尽管存在一些差异，这可能是由于疫苗接种计划、检测血清数量、采样年龄和地区差异所致。母猪中PRRSV和SIV血清阳性群体的百分比超过85%，育肥猪约为80%，种公猪约为50%。2003年至2005年期间，ADV gE血清阳性母猪群的比例从41%降至30%，而育肥猪群中这一比例从41%降至33%，种公猪群中从13%降至4%。PCV2抗体以及PPV抗体广泛存在；对于后者，未评估抗体是由感染引发还是由疫苗接种引发。在母猪和育肥猪群中，分别有89%和66%的群体同时存在PCV2、PRRSV和SIV抗体。血清阳性率或共同血清阳性情况与农场特征、管理或生产参数之间未发现统计学关联。
