CWD, a prion disease, has arrived in Yellowstone National Park, raising concerns about its ecological impact and the risk of transmission to other species, including humans

Chronic wasting disease (CWD), also known as "zombie goat disease", has been detected in North America, including the famous Yellowstone National Park. CWD, caused by prions, abnormal and transmissible pathogens, affects deer such as roe deer, elk and reindeer. The disease, which is fatal and lacking in treatments or vaccines, has raised concerns as it has spread across regions.

Symptoms and impact

CWD causes severe changes in the brain and nervous system of the host. Infected animals exhibit strange behaviors such as excessive salivation, lethargy, weakness, stumbling gait and a seemingly blank stare. The name "zombie goat disease" reflects the distinct and worrying symptoms observed in these animals, reports The Guardian.

Warning to authorities

The discovery of CWD in Yellowstone National Park, known for its diverse and wild mammal-rich ecosystem, is an important wake-up call. Dr Thomas Roffe, a veterinarian and director at the US Fish and Wildlife Agency, stresses the importance of taking an aggressive approach to slow the spread of the disease.

The urgency of control measures

Dr Cory Anderson, a specialist who has studied CWD transmission routes, warns that the disease is fatal, incurable and highly contagious. The absence of an effective treatment and an easy way to eradicate it from the environment are major challenges. CWD can persist in the environment for years and is resistant to various decontamination methods.

Risks of transmission to humans

In addition to the impact on animals, CWD raises concerns about the possibility of crossing species barriers and affecting other mammals, birds or even humans. Experts stress the need for preparedness and awareness of the potential risks to public health.

A warning for the future

Experts note that CWD brings with it significant threats, and neglecting warnings and failing to take proactive measures can lead to serious environmental and community health consequences. The need for a preventative approach and preparedness to manage potential disease developments is stressed.