ID#: 1883
Description: Caption:
This image depicts a view of a Petri dish culture plate, which contained a growth medium of sheep blood agar (SBA), and which had been inoculated with Bacillus anthracis. In this case, what you’re seeing is a positive result of what is known as a phage test, whereupon, you’ll note the diminished growth (arrowhead) contained within the confluent colonial growth, known as oval-shaped macroplaque, where a gamma phage suspension had been applied atop the blood agar medium. This particular culture was incubated in a carbon dioxide-free environment, at a temperature of 35?C.
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Content Providers(s): CDC/ Courtesy of Larry Stauffer, Oregon State Public Health Laboratory
Creation Date: 2002
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.