Which of the following organisms have a capsule?

Prepare for the AAMI Microbiology exam for embalmers with our comprehensive quiz. Use flashcards and multiple-choice questions with explanations and hints to master exam content and enhance your study experience.

Capsules are polysaccharide layers that surround certain bacteria and help them resist phagocytosis, aiding infection. Streptococcus pneumoniae is classic for possessing a prominent capsule, which is its major virulence factor and a basis for its serotype typing and vaccines. Because the capsule is such a defining feature of pneumococcus, this organism is the best example of a capsule-bearing bacterium among the options. Some other organisms can have capsules as well, but pneumococcus is the most widely recognized encapsulated pathogen in standard coursework.