Belize began responding to the re-emergence of New World Screwworm (Cochliomyia hominivorax) in animals in late 2024. By early 2025, public-health and animal-health authorities were increasing surveillance and awareness because the parasitic fly can affect warm-blooded animals and, in uncommon circumstances, humans.
Why authorities were watching closely
New World Screwworm flies lay eggs in open wounds. After hatching, the larvae feed on living tissue, which is why rapid identification, wound care and coordinated reporting are important. Belize’s response has involved the Ministry of Health and Wellness, the Belize Agricultural Health Authority and other partners.
For the public, the practical message is straightforward: keep wounds clean and properly covered, seek medical attention for unusual or worsening wounds, and ensure wounds on pets and livestock are inspected and treated promptly.
How the situation developed
This Medimports article was first published in March 2025, when concern centered on the spread in animals and the possibility of human infection. Belize later confirmed its first human New World Screwworm case in August 2025. The Ministry reported that the patient sought medical care and was responding to treatment, while authorities continued surveillance and public education.
In 2026, Belize and PAHO/WHO continued strengthening clinical preparedness and surveillance through a One Health approach that connects human, animal and environmental health.
This article is for general information and public-health awareness. For personal medical advice, diagnosis or treatment, consult a qualified healthcare professional.