Post Kala-azar dermal leishmaniasis (PKDL) is a well-recognized complication of visceral leishmaniasis (VL) or kala-azar. It has been described since the beginning of the 20th century both in Asia and Africa, in areas where Leishmania donovani is the causative parasite.
Post Kala-azar dermal leishmaniasis (PKDL) is a well-recognized complication of visceral leishmaniasis (VL) or kala-azar. It has been described since the beginning of the 20th century both in Asia and Africa, in areas where Leishmania donovani is the causative parasite.
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The life cycle of the malaria parasite involves two hosts: humans and female Anopheles mosquitoes. During a blood meal, a malaria-infected female Anopheles mosquito inoculates sporozoites into the human host. Sporozoites infect liver cells and mature into schizonts, which rupture and release merozoiRead more
The life cycle of the malaria parasite involves two hosts: humans and female Anopheles mosquitoes. During a blood meal, a malaria-infected female Anopheles mosquito inoculates sporozoites into the human host. Sporozoites infect liver cells and mature into schizonts, which rupture and release merozoites. Merozoites then infect red blood cells, where they multiply and release more merozoites, continuing the cycle.
Some of the merozoites develop into male and female gametocytes, which are taken up by a female Anopheles mosquito during a blood meal. In the mosquito’s gut, the gametocytes fuse to form zygotes, which develop into motile ookinetes that invade the mosquito’s midgut wall and develop into oocysts. The oocysts grow, rupture, and release sporozoites, which migrate to the mosquito’s salivary glands. When the mosquito takes another blood meal, it injects the sporozoites into a new human host, starting the cycle again.
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