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HIV / AIDS
At the end of 2003, an estimated 1,039,000 to 1,185,000 persons in the United States were living with HIV/AIDS. In 2005, 37,331 cases of HIV/AIDS in adults, adolescents, and children were diagnosed in the 33 states with long-term, confidential name-based HIV reporting. CDC has estimated that approximately 40,000 persons in the United States become infected with HIV each year.
CDC
Plasmodium falciparum plasmodial merozoite making initial contact with an erythrocyte (red blood cell) membrane at the beginning of erythrocyte invasion. The invasive merozoite has a distinct trilaminar membrane (brown). The merozoite cytoplasm contains a rhoptry neck or duct and rhoptry bulbs (purple), a nucleus (yellow), ribosomes (green), micronemes (rust brown) and mitochondria (pink). Malaria is caused by Plasmodium spp., 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.
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Copyright Dennis Kunkel Microscopy, Inc.
This image is the property of Dennis Kunkel and Dennis Kunkel Microscopy, Inc. The image is copyrighted and any reproduction without direct approval is expressly prohibited.
For permission to license and use this image, please contact Dennis Kunkel:
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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