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Euryhaline rotifer (<i>Brachionus plicatilis</i>)
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281001C

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Image #   281001C
Name:   Malaria sporozoite (Plasmodium sp.)
Copyright:   Copyright 2008 Dennis Kunkel Microscopy, Inc.
Description:   Caption: Malaria sporozoite (Plasmodium sp.) from a mosquito. The sporozoite stage is an asexual reproductive stage of the malaria parasite in the Anopheles sp. mosquito. Sporozoites develop in the mosquito after the mosquito feeds on an infected human which contains malaria gametocytes. The gametocytes move to the mosquito gut wall where they reproduce asexually in an oocyst. The oocyst eventually bursts and the newly formed sporozoites migrate to the salivary glands and into the central salivary duct. As the mosquito feeds on humans the plasmodial sporozoites are injected in to a human via the mosquito's saliva. The female Anopheles mosquito passes the plasmodium sporozoites to a human, infecting liver cells and then red blood cells. Malaria plasmodial stages invade human red blood cells, causing recurrent fever, anemia and even death. Malaria is caused by Plasmodium sp., parasitic single-celled protozoans called plasmodia. Malaria is spread to humans by species of tropical mosquitoes (Anopheles species). Infection spreads from the liver to the blood, where the plasmodium multiplies inside red blood cells. The plasmodial parasite reproduces asexually in the red blood cells significantly destroying many red blood cells. There are four stages of the parasite that develop in human red blood cells - merozoite stage, ring stage, trophozoite stage and schizont stage. Release of mature Plasmodium merozoites results in further infection and produces bouts of shivering fever (paroxysms) and sweating that may be fatal.
Magnification*: x2,400
Type: SEM
    *(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)
Keywords:   281001C 12.01.08 human parasite parasite parasitic infection parasitic infections parasitic protozoa parasitic protozoan malaria sporozoite malaria sporozoites sporozoite sporozoites sporozoite stage sporozoite stages malaria parasite malaria parasites asexual reproduction reproduce asexually gut wall mosquito gut wall mosquito salivary gland oocyst oocysts salivary gland central salivary duct salivary duct plasmodial sporozoite plasmodial sporozoites liver infection infecting liver cells infecting red blood cell infecting red blood cells mosquito saliva saliva malaria plasmodial stage malaria plasmodial stages recurrent fever anemia human anemia human malaria infection human malaria infections human malarial infection human malarial infections human recurrent fever medical blood blood cells red blood cells malaria RBC plasmodium blood infection human disease infected red blood cell infected red blood cells malaria infected red blood cell malaria infected red blood cells malaria infection Plasmodium falciparum red blood cell protozoa protozoan paroxysms chills disease vector fever insect vector malaria vector SEM plasmodia parasitic protozoans RBCs plasmodial parasite human blood infected human blood Anopheles Anopheles mosquito infection human blood infection human blood infections human red blood human red blood infection human red blood infections infected mosquito parasitic protozoans gametocyte gametocytes

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