DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Protozoan infection (giardiasis) in human intestinal lumen (Giardia sp.), coloured transmission electron micrograph (TEM). Vegetative phase called trophozoite that develops from a cyst infection in the small intestine. Giardia lamblia, a human parasite of the gastrointestinal tract. The organism is spread by direct contact or through contaminated food and water. Giardia spp. They cause the disease giardiasis (or lambliasis), an infection of the small intestine most common in tropical areas. Giardia spp. Abdominal cramps, swelling, diarrhoea and nausea may occur. Magnification: x1,820 when shortest axis printed at 25 millimetres.
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