Vaccination of laying hens against highly pathogenic avian influenza (HPAI) reduces virus transmission, mortality and outbreak risks in the poultry sector. This was shown in a multi-year field study by Wageningen University & Research, conducted with Royal GD and Utrecht University, investigating two HVT-based H5 vaccines under Dutch commercial farming conditions.
At the start of the research project on the effectiveness of two commercial vaccines against highly pathogenic avian influenza (H5N1), flocks received one of two vaccines: VAXXITEK HVT+IBD+H5 or Vectormune® AI. The vaccinated laying hens were monitored for more than 85 weeks in order to assess the effectiveness of vaccination throughout the entire production cycle. The study was commissioned by the Dutch Ministry of Agriculture, Fisheries, Food Security and Nature (LVVN) and funded by the ministry together with the Dutch poultry sector, represented by AVINED.
Reduced virus transmission and smaller outbreaks