It can take hours or days to get a COVID-19 test result, but the response from the bees is immediate. The method is also cheap, potentially making it useful for countries where tests are scarce, they said.
But Dirk de Graaf, a professor who studies bees, insects and animal immunology at Ghent University in Belgium, said he did not see the technique replacing more conventional forms of COVID-19 testing in the near future.
Variants are already outracing vaccination progress in many parts of the world, fueling bigger outbreaks that spread faster. While some rich nations that secured effective vaccines early have seen their epidemics wane, the virus is still spreading like wildfire in developing economies, prolonging the pandemic.
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