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RODENT NEWS

A collection of the latest rodent articles featuring island conservation, rodent control and human interest stories from around the world.

Health & Economic Impact

Puerto Rico’s 2022 leptospirosis surge shows one of the hidden health risks of flooding

Yale Climate Connect May 30, 2025

n 2022, Hurricane Fiona hit Puerto Rico, causing flooding across the island. After the storm, there was a spike in leptospirosis, a disease that causes symptoms such as fever, chills, vomiting, and sometimes even death. The bacteria that causes leptospirosis is carried by mammals like rats, who can spread the bacteria into water or soil through …

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