Chronic Wasting Disease

Vampire Bats May Spread Deadly Deer Disease to Humans

Texas ranches have potentially spread Chronic Wasting Disease (CWD) to Mexico by shipping hundreds of live deer between 2021 and 2025, raising concerns about the disease’s persistence and potential for novel transmission routes. Researchers are investigating if vampire bats could become infected with CWD strains, potentially altering prions to infect non-cervid species such as livestock or humans, although this remains a speculative concern requiring further study. While current evidence is preliminary and lacks definitive interaction models between bats and CWD-positive deer, proactive ecological studies, transmission experiments, and surveillance are recommended to mitigate future risks to wildlife, livestock, and public health.

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Zombie Deer Disease Spreads: Scientists Warn of Global Crisis

Chronic wasting disease (CWD), a fatal prion disease affecting cervids, is spreading rapidly across the US and internationally, with 36 US states now affected. Despite the lack of human cases to date, experts warn of a potential “national and global crisis” should spillover occur, given the high consumption of venison and the disease’s resilience in the environment. The US is deemed unprepared for a human CWD outbreak, lacking a unified national or international strategy, and current policies, such as wildlife feeding grounds and predator control, exacerbate the problem. The disease poses an existential threat to wild cervid populations and highlights the urgent need for improved surveillance and a change in management practices.

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