FIRST HUMAN CASE OF SCREWWORM MYIASIS REPORTED IN MEXICO

ORIGINALLY PUBLISHED IN DE MODE

Article Published on: 19TH APR 2025 | www.demodemagazine.com

Mexico has confirmed its first human case of myiasis caused by a New World screwworm, according to the Health Ministry. A 77-year-old woman from Acacoyagua, Chiapas, was diagnosed and is currently stable, undergoing antibiotic treatment. Myiasis is a parasitic infection where fly larvae, or maggots, infest open wounds and feed on living tissue.

The screwworm fly (Cochliomyia hominivorax), common in South America and the Caribbean, lays its eggs in open wounds or mucous membranes. Once hatched, the larvae burrow into healthy tissue, causing severe damage. The name "screwworm" comes from this spiral-like drilling behavior.

While screwworm infestation primarily affects livestock, it can also impact pets, birds, and humans. According to the CDC, those at higher risk include individuals traveling to affected regions, especially if they have open wounds, sleep outdoors, or come into contact with infected animals. Prompt medical attention is critical for managing the infection.