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50.0 MB (4.0 MB compressed)
5120 x 3413 pixels
43.4 x 29.0 cm ⏐ 17.1 x 11.4 in (300dpi)
KATERYNA KON / SCIENCE PHOTO LIBRARY KATERYNA KON / SCIENCE PHOTO LIBRARY
Balantidiasis, conceptual image. Computer illustration showing close-up view of ciliate protozoan Balantidium coli, an intestinal parasite the causative agent of ulcers (balantidiasis) in the intestinal tract of humans. It is a rare form of dysentery, which is mainly limited to farm workers and those in close association with pigs. The parasites are common and harmless amongst pigs. They form cysts which pass out of the pigs in their faeces. Humans contract the disease through food or drink contaminated by such cysts.
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