50.3 MB (4.6 MB compressed)
5055 x 3481 pixels
42.9 x 29.5 cm ⏐ 16.9 x 11.6 in (300dpi)
JOHN DURHAM / SCIENCE PHOTO LIBRARY JOHN DURHAM / SCIENCE PHOTO LIBRARY
Petri dish culture of colonies of the bacteria Salmonella typhi, causative agent of typhoid, growing on MacConkey agar and appearing a yellowish colour. A non-pathogenic bacteria is growing with it.
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