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Drawing of a tsetse fly from 1880. The tsetse fly (genus Glossina) is a large, brown, biting fly that serves as both a host and vector for the trypanosome parasites. While taking blood from a mammalian host, an infected tsetse fly injects metacyclic trypomastigotes into skin tissue. From the bite, parasites first enter the lymphatic system and ...
Tsetse flies are members of the order Diptera, the true flies. They belong to the superfamily Hippoboscoidea, in which the tsetse's family, the Glossinidae, is one of four families of blood-feeding obligate parasites. Up to 34 species and subspecies of tsetse flies are recognized, depending on the particular classification used.
Glossina tachinoides is one of the 23 recognized species of tsetse flies (genus Glossina), and it belongs to the riverine/palpalis group (subgenus Nemorhina). Glossina tachinoides can transmit African trypanosomiasis , including both the form affecting livestock and the one affecting humans.
The tsetse fly bite erupts into a red chancre sore and within a few weeks, the person can experience fever, swollen lymph glands, blood in urine, aching muscles and joints, headaches and irritability. In the first phase, the patient has only intermittent bouts of fever with lymphadenopathy together with other non-specific signs and symptoms.
On the other end of the spectrum, horse flies and deer flies use "blade-like" mouthparts to slash the skin before eating the spilling blood, which causes large, painful bites, Frye says. A fly ...
Glossina fuscipes is a riverine fly species in the genus Glossina, which are commonly known as tsetse flies. [1] Typically found in sub-Saharan Africa [2] but with a small Arabian range, [3] G. fuscipes is a regional vector of African trypanosomiasis, commonly known as sleeping sickness, that causes significant rates of morbidity and mortality among humans and livestock. [4]
From ticks to spiders to bed bugs, here’s what the most common bug bites look like in photos, the symptoms to know, and whether or not they can be dangerous.
Most trypanosomes develop in tsetse flies (Glossina spp.), its biological vector, in about one to a few weeks. When an infected tsetse fly bites an animal, the parasites are transmitted through its saliva. It can also be spread by fomites such as surgical instruments, needles, and syringes. The most important non-Glossina vectors are thought to ...