Health authorities in Hidalgo confirmed the first case of the screwworm parasite in Atotonilco de Tula after detecting larvae in a dog's wound [1, 2].
The discovery is significant because the parasite can cause severe health complications if not treated immediately. Without intervention, the larvae can destroy living tissue, posing a lethal threat to both animals and people [1, 2].
The Secretaría de Salud de Hidalgo identified the case in the Tula-Tepeji region after local neighbors reported a wound on a dog [1, 2]. The confirmation was reported on April 22, 2024 [3].
Health officials emphasized the necessity of early detection to prevent the spread of the infestation. "Without timely treatment, the larvae can destroy living tissue and cause deadly complications in animals and people," the health authorities said [1].
Reports regarding the first instance of the parasite in the state show some contradictions. While some sources identify the dog in Atotonilco de Tula as the first case [1, 2], other reports cite a first confirmed case in a 57-year-old [3] human in the Sierra Otomí-Tepehua region [3].
Local officials continue to monitor the area to prevent further outbreaks. The parasite, known for its ability to burrow into healthy flesh, requires specific medical or veterinary intervention to remove the larvae and treat the resulting infection.
“The larvae can destroy living tissue and cause deadly complications in animals and people.”
The appearance of the screwworm in Hidalgo indicates a potential public health and veterinary challenge for the region. Because the parasite can migrate from animals to humans and cause extensive tissue necrosis, the conflicting reports on whether the first case was animal or human highlight the urgency for a standardized surveillance system to track the parasite's spread across different species.





