Africa: The Bloodsucking Insect With a Saw for a Mouth - How the Tsetse Fly Bites Through Almost Anything
[The Conversation Africa] Tsetse flies transmit some of Africa's most persistent parasitic diseases. They have affected human health, livestock production and rural development for generations, across a region spanning millions of square kilometres in 37 sub-Saharan countries.
Tsetse flies are bloodsucking insects native to sub-Saharan Africa, known for transmitting diseases such as sleeping sickness to humans and causing nagana in livestock. These flies move between hosts, including humans, wildlife, and various animals like elephants, buffalos, rhinos, hippos, turtles, and monitor lizards, creating complex transmission networks.
Sleeping sickness now has low prevalence due to surveillance, diagnosis, and treatment, but animal trypanosomiasis, or nagana, persists, causing severe consequences for affected rural communities reliant on cattle. Tsetse flies use a unique feeding apparatus, which pierces various skin types with rows of tiny teeth and strong backward strokes.
Unlike mosquitoes that feed on individual blood vessels, tsetse flies drink from pooled blood, making them effective at transmitting parasites. Researchers have studied how tsetse flies overcome diverse skin barriers, finding that their feeding success stems from versatility in anatomy, mechanics, and behavior rather than exceptional adaptations.
Their findings could provide insights into controlling tsetse flies, but not directly in combating the diseases they transmit.
Written by urgent.news from AllAfrica Health's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
