Deformed wing virus

Deformed wing virus (DWV) is a positive-strand RNA virus, one of 22 known viruses affecting honey bees. While most commonly infecting the honey bee, Apis mellifera, it has also been documented in other bee species, like Bombus terrestris, thus, indicating it may have a wider host specificity than previously anticipated. The virus was first isolated from a sample of symptomatic honeybees from Japan in the early 1980s and is currently distributed worldwide.

It is found also in pollen baskets and commercially reared bumblebees.
Its main vector in A.
mellifera is the Varroa mite, which feeds on the hemolymph of the bee.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 3.0

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