First recorded West Nile virus case in Belgium discovered in local horse. Horse near Brussels exhibited neurological symptoms, euthanized after definitive laboratory virus confirmation.

Veterinarian’s attentive evaluation, not a surveillance program, led to the virus’s detection.

West Nile virus circulates among birds and Culex mosquitoes, sometimes infecting horses, humans. Specialists emphasize infected horses do not spread the virus to their environment directly.

Horses can indicate regional outbreaks before human cases, serving an early warning function. Experts advise horse owners simple hygiene and mosquito precautions are sufficient for safety.