This is a photomicrograph of the organism that causes pneumococcal pneumonia. The bacteria are round, but join together to form chains. Frequently, these join together to form pairs and are called diplococci; the prefix di means two.
Reviewed By: Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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