Nationwide Screening for Bee Viruses and Parasites in Belgian Honey Bees., Matthijs, Severine, De Waele Valérie, Vandenberge Valerie, Verhoeven Bénédicte, Evers Jacqueline, Brunain Marleen, Saegerman Claude, De Winter Paul J. J., Roels S., De Graaf Dirk C., et al. , Viruses, 2020 08 14, Volume 12, Issue 8, (2020)