Health officials in Queretaro, Mexico, have detected the first human case of screwworm infestation in the state [1].

The discovery marks a significant escalation in the spread of the parasite, which typically affects livestock. This shift into the human population necessitates urgent public health alerts and the activation of specialized control measures to prevent further transmission.

Martina Pérez Rendón, the Secretary of Health for Queretaro, said the case was identified in the municipality of Cadereyta de Montes [1]. The affected individual is an older adult [1].

"Ya fue detectado el primer caso de gusano barrenador en una persona," Pérez Rendón said [1].

Health authorities are monitoring the region as the parasite extends its reach. The screwworm is known for invading living tissue, creating open wounds that can lead to severe secondary infections if not treated promptly. While the current number of human cases in Queretaro remains at one [1], the detection serves as a warning for both the agricultural sector and the general public.

Local health services are now working to implement containment strategies to stop the parasite from spreading to other municipalities. These efforts include increasing surveillance of livestock, and educating the population on how to identify and report early symptoms of infestation.

"Ya fue detectado el primer caso de gusano barrenador en una persona."

The transition of screwworm from livestock to humans indicates a growing biological threat in the region. Because this parasite can cause extensive tissue damage, the detection in Cadereyta de Montes suggests that existing veterinary barriers are insufficient, requiring a coordinated one-health approach between agricultural and human medical services to prevent a wider outbreak.