• 3 minutes
• Bite size
• Klaus Depner

Meet the Expert Bite Sizes with Klaus Depner.

• 10 minutes
• Expertise article | IPVS 2016
• JY Choi, TW Hahn, HK Seo. IPVS. 2016

In this study, it is concluded that a Type 2 strain based modified live vaccine could reduce the impact of the highly pathogenic PRRS wild type 1 virus. This is consistent with other researchers’ findings

• 21 minutes
• European PRRSpective | Expertise video
• Daniel Linhares

European PRRSpective 2023 session 2 Controlling farm breakdowns

• Top publications | June
• Fu-Chun Hsueh, Sheng-Yuan Wang, Wei-Hao Lin, Chuen-Fu Lin, Chen-Yu Tsai, Chin-Wen Huang, Ning Sun, Ming-Tang Chiou and Chao-Nan Lin

Porcine reproductive and respiratory syndrome (PRRS), which is caused by a highly transmissible pathogen called porcine reproductive and respiratory syndrome virus (PRRSV), has caused severe problems, including reproductive disorders in sows and respiratory symptoms in nursery pigs worldwide, since the early 1990s. However, currently available PRRSV vaccines do not supply complete immunity to confront the viral infection. Elicitation of PRRSV-specific neutralizing antibodies (NAbs) during the preinfectious period has been deemed to be a feasible strategy to modulate this virus, especially in farms where nursery pigs are seized with PRRSVs. A total of 180 piglets in a farrow-to-finish farm that had a natural outbreak of PRRS were distributed into three groups based on the different PRRSV NAbs levels in their dams. In the present study, piglets that received superior maternal-transferred NAbs showed delayed and relatively slight viral loads in serum and, on the whole, higher survival rates against wild PRRSV infections. A positive correlation of maternal NAbs between sows and their piglets was identified; moreover, high NAbs titers in piglets can last for at least 4 weeks. These results provide updated information to develop an appropriate immune strategy for breeding and for future PRRSV control under field conditions.