Lyme illness might unfold additional by serving to ticks survive chilly winters

Ticks infected with the bacteria that causes Lyme disease are more likely to survive winter, which could spread the disease as the world warms

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Ticks that can infect humans Lyme disease have Extended their range northward In North America and Eurasia, as the climate warms. Now a study has found that the bacterium that causes Lyme disease may have aided this expansion by improving the survival of overwintering ticks.

“This infection helped them get through some tough winters,” says shelley adamo at Dalhousie University in Halifax, Canada. “It does have a big impact in terms of population numbers.”

Among humans, Lyme…