26/01/2026
Keep your eyes (and nose) for signs of screwworm and report cases immediately! Consistent wound care and inspection are vital to stopping infestations in their tracks. Report cases to BAHA @824-4872
Here’s a *clear and up-to-date breakdown of facts about screwworm (especially the New World Screwworm, Cochliomyia hominivorax) in Belize — a topic that’s been very much in the news and agricultural reports lately 🐛🇧🇿:
🦟 What the Screwworm Is
The New World Screwworm is a parasitic fly (Cochliomyia hominivorax) whose larvae infest open wounds of warm-blooded animals and humans.
Females lay eggs in wounds; within about 12–24 hours larvae hatch and burrow into living tissue, feeding on flesh and causing traumatic myiasis.
📍 Belize’s Recent Screwworm Situation
🐄 Outbreak & Spread
Screwworm was detected again in Belize starting late December 2024, after the country had been free from it for decades.
Cases have been found in multiple districts, especially Toledo, but also Cayo, Belize District, and Orange Walk.
It’s affected livestock (cattle, pigs, sheep, horses), pets (especially dogs), and wildlife like howler monkeys.
🧑⚕️ Human Infection
In August 2025, Belize confirmed its first human case of New World Screwworm infection — a 21-year-old man who is being treated and responding well.
This underscores that while most cases occur in animals, humans can become infected if wounds aren’t properly protected and cleaned.
🐾 How it Affects Animals & People
🐶 Animals
Larvae feed on living tissue, leading to deep wounds, secondary infection, pain, and sometimes death if untreated.
Rapid growth means infestations can worsen within days, making daily checks of livestock and pets essential.
🧑 Humans
Although rarer, human cases are serious and characterized by larvae in wounds, pain, and potential secondary infection.
⚠️ Why Screwworm Is Serious
Rapid life cycle: Eggs hatch quickly; larvae burrow and feed deep into tissues.
Broad host range: Affects all warm-blooded animals — livestock, pets, wildlife, and humans.
Economic impact: Infestations hurt cattle production, may disrupt exports, and increase livestock treatment costs.
Public health concern: First human case highlights risk if wounds are exposed and health awareness is low.
🛡️ What Belize Authorities Are Doing
Surveillance & reporting: BAHA (Belize Agricultural Health Authority) and the Ministry of Agriculture continue monitoring and urging the public to report cases.
Movement controls: Animal movement is regulated, with inspections and permits required to prevent spread.
Public education: Officials emphasize proper wound care in animals and humans, plus wound inspection and treatment.
Infected areas declared: Certain regions, like Toledo District, have been officially declared infected under Belize’s agricultural health law.
🌿 Key Takeaways
✅ Screwworm is a parasitic fly larvae that burrows into live tissue, causing painful and dangerous infestations.
✅ Belize has had an active outbreak since late 2024, affecting many animals and at least one human.
✅ Prevention and vigilance are critical — keep wounds clean and treated, inspect animals daily, and report suspicious cases early.