"Bee populations are in decline globally. There are several reasons: pesticides, habitat loss, mite infestation and viruses. New research has focused on a pathogen called deformed wing virus, and offers some hope. With the deformed wing virus, scientists have, for the first time, managed to simulate the course of disease using artificial genetic material of the virus. ...."
Read more here: Digital Journal
and see the research article - Construction and Rescue of a Molecular Clone of Deformed Wing Virus (DWV) - Here: Plos One