Amie's, Leibovitz-Emory, and Stuart's are all types of:

D
Examples of successful transport media include Stuart's medium, Amie's medium, Leibo-vitz-Emory medium, Hanks' balanced salt solution (HBSS), Eagle's tissue culture medium, and the commercially available M4 transport media. Respiratory and stool specimens can be main-tained in modified Stuart's, modified HBSS, or Leibovitz-Emory medium containing antimicro-bials.

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C
The primary causes of infective endocarditis are the viridans streptococci, made up of several species (Box 67-2). These organisms are normal inhabitants of the oral cavity, often gaining en-trance to the bloodstream as a result of gingivitis, periodontitis, or dental manipulation. Heart valves, especially those previously damaged, present convenient surfaces for attachment of these bacteria. Streptococcus sanguinis and S. mutans are frequently isolated in streptococcal endocar-ditis.

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B
Catalase testing of mycobacterial isolates is assessed in more than one way: by the relative activ-ity of the enzyme, as determined by the height of a column of bubbles of oxygen formed; by the reaction of enzyme and substrate; and by the ability of the catalase enzyme to remain active after heating.

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C
C. jejuni subsp. jejuni grows best at 42C in microaerobic conditions. The atmosphere can be generated in several ways, including commercially produced, gas-generating envelopes to be used with plastic bags or jars.

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D
Colonies of P. brasiliensis grow very slowly (21 to 28 days) and are heaped, wrinkled, moist, and yeastlike in appearance. With age, colonies may become covered with a short aerial mycelium and turn from tan to brown. The surface of colonies is often heaped with crater formations.

TYVM