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Human Survival and The Virus
"The single greatest threat to man’s continued existence on earth is the virus."
Parasitic promastigotes that cause leishmaniasis in humans (Leishmania major). This tropical disease is transmitted by bites from infected sand flies. The parasites are ingested by the insect vector during a blood meal from a mammal or human. The parasites in humans are found within macrophages in the amastigote form. In the blood stream they transform into the promastigote form. Promastigotes multiple by longitudinal fission in the gut of the insect. Leishmaniasis occurs in two forms: cutaneous which affects the skin and mucous membranes, usually giving rise to an ulcer at the site of the insect bite. The more serious kala-azar causes fever and liver damage, and it can be fatal.
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Dennis Kunkel Microscopy, Inc.
P.O. Box 2008
Kailua, HI 96734
Phone: 808-263-0583
Email: kunkel@denniskunkel.com
www.denniskunkel.com
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