Noun
Initialism of deformed wing virus.
(plumbing) Initialism of drain-waste-vent.
Source: en.wiktionary.orgFeral honey bees are prone to high levels of deformed wing virus (DWV). Source: Internet
Higher levels of DWV are more prevalent in colonies that are not being treated for varroosis. citation Tobacco ring spot virus (TRSV) spreads and negatively affects the health of honey bees indirectly. Source: Internet