Journal
SCIENCE
Volume 336, Issue 6086, Pages 1304-1306Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1220941
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Funding
- Natural Environment Research Council [NE/H013164/1]
- Organisation for Economic Co-operation and Development
- C. B. Dennis Trust
- Waterloo foundation
- Defra
- Welsh Assembly Government
- U.S. Department of Agriculture's National Institute of Food and Agriculture Tropical and Subtropical Agricultural Research (TSTAR) [2010-34135-21499]
- Hawaii Department of Agriculture
- Natural Environment Research Council [MBA010001, NE/H013164/1] Funding Source: researchfish
- NERC [MBA010001, NE/H013164/1] Funding Source: UKRI
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Emerging diseases are among the greatest threats to honey bees. Unfortunately, where and when an emerging disease will appear are almost impossible to predict. The arrival of the parasitic Varroa mite into the Hawaiian honey bee population allowed us to investigate changes in the prevalence, load, and strain diversity of honey bee viruses. The mite increased the prevalence of a single viral species, deformed wing virus (DWV), from similar to 10 to 100% within honey bee populations, which was accompanied by a millionfold increase in viral titer and a massive reduction in DWV diversity, leading to the predominance of a single DWV strain. Therefore, the global spread of Varroa has selected DWV variants that have emerged to allow it to become one of the most widely distributed and contagious insect viruses on the planet.
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