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Breaks in hibernation help fight bugs

cold. For animals exposed to Salmonella, which multiplies rapidly in warm temperature, a regular break in hibernation would be an important adaptation to combat the germs, when experiencing a warmer winter. However, Salmonella doesn't thrive at very low temperatures, so when animals experience a particularly cold winter, these breaks wouldn't be crucial.

But if the animals were exposed to certain pathogens that thrive at low temperatures, like some E. coli, the animals would still have to regularly break their hibernation to ensure protection at all temperatures, Luis explains.

"Our model, which is confirmed by field data, shows that torpor patterns generally seen in some hibernating animals may be an evolutionary adaptation to help protect them from bacteria that grow well in low temperatures," says Luis.

The researchers suggest that an understanding of how pathogens interact with their hibernating hosts could provide valuable insight into the spread and emergence of zoonotic diseases.


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Source:Penn State


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