ID#: 8172
Caption:
This 1977 image depicted two Petri dishes, each filled with trypticase soy agar medium, containing 5% defibrinated sheep's blood. The plate on the left had been stabbed and streaked with an inoculum containing Streptococcus mitis, alpha-hemolytic bacteria, a member of the Viridans group, while the right plate was stabbed with an inoculum containing Group A Streptococcus pyogenes (GAS), a typical beta-hemolytic bacteria. The inoculation was performed using a wire loop, which had been dipped into a primary culture medium. The BAPs were incubated in a carbon dioxide enriched atmosphere at 35oC for 24-hours.
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Content Provider(s): CDC/ Richard R. Facklam, Ph.D.
Creation Date: 1977
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.