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wood prints cup wood prints flagella wood prints cocci wood prints bacilli wood prints spirochete wood prints spirochaete wood prints gram-negative wood prints gram negative wood prints bacteria wood prints microbe wood prints microbial wood prints microorganism wood prints drinking water wood prints water wood prints organism wood prints

photographs cup photos flagella photos cocci photos bacilli photos spirochete photos spirochaete photos gram-negative photos gram negative photos bacteria photos microbe photos microbial photos microorganism photos drinking water photos water photos organism photos

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Color-enhanced scanning electron micrograph showing Spirochaetes bacteria from a cover slip on the wall of a plastic drinking cup. The cup was used for urban tap water and was only rinsed with that water and the walls were left wet until the next use a few hours later. Within a month, the cover slip became slightly foggy. Whatever accumulated on it was fixed in glutaraldehyde and examined by SEM. In addition to a small number of cocci and bacilli, Spirochaetes figured prominently. Image width 12.8 micrometers. Magnification 7,812x if the image is printed 10 cm wide.