/b/veterinary-nursing-news/posts/new-trial-shows-equilis-prequenza-protects-against-viral-shedding MSD Animal Health Equine is highlighting the results of a study conducted by the company which, it says, proves that Equilis Prequenza offers highly significant protection against viral shedding and the clinical signs of equine influenza (EI). Currenten-USTelligent Community 10