Bacteria of different shapes, computer illustration showing three main shapes of bacteria - spherical (staphylococci, streptococci and diplococci), rod-like (bacilli, streptobacilli and coccobacilli), and spiral (vibrios, spirillae and spirochaetes).

- Image ID: PA6G9W

Bacteria of different shapes, computer illustration showing three main shapes of bacteria - spherical (staphylococci, streptococci and diplococci), rod-like (bacilli, streptobacilli and coccobacilli), and spiral (vibrios, spirillae and spirochaetes).

Science Photo Library / Alamy Stock Photo

Image ID: PA6G9W