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Date: | Sun, 22 Dec 2019 22:06:46 -0500 |
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> Remember, DWV and other viruses are endemic.
Viruses were probably always with bees but as Martin was able to study in the Hawaiian Islands, varroa changes the viral landscape in terms of diversity which leads to a more virulent strain that's adapted for transmission. Change the predation level of varroa and life gets better for the bees.
> The mite increased the prevalence of a single viral species, deformed wing virus (DWV), from ~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.
Global Honey Bee Viral Landscape Altered by a Parasitic Mite
Stephen J. Martin, et al.
Bill Hesbach
Cheshire CT
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