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Sick queen bees have shriveled ovaries, putting their colonies at risk

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  • Post last modified:November 10, 2022
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Queen bees with viral infections have smaller ovaries than their healthy counterparts, a recent CVIA study has found, which could threaten the health and financial viability of their colonies.

Can’t get COVID, can get sick

Viral infections in honey bees are becoming more intense and widespread. CVIA researchers Abigail Chapman and Dr. Alison McAfee found that virus-infected queen bees in the field have shriveled ovaries compared with healthy ones. The researchers then infected queen bees in the lab with a different virus, and noticed the same result.

No more baby bees?

A queen’s shrunken ovaries could mean fewer eggs, and so, fewer baby bees – something the researchers will investigate in future work. A smaller population would make a colony weak, affecting how much money beekeepers can make from it. Honey bees contribute an estimated $4 to $5.5 billion annually to the Canadian economy.

COVID-style testing

The researchers are in the very early stages of working on a “queen vaccine” to protect the bees. In the meantime, beekeepers are practicing COVID-style measures to prevent virus spread,

including quarantining sick colonies and sterilizing equipment. Local governments could help by subsidizing PCR tests to help beekeepers identify which colonies are sick, says Chapman.

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