ID#: 648
This photomicrograph depicts some of the histopathologic changes exhibited at the site of a delayed cutaneous hypersensitivity reaction to a tuberculin purified protein derivative (PPD) skin test in a rhesus monkey, which had also received transfer factor.
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Content Provider(s): CDC/Dr. Shirley E. Maddison
Creation Date: 1972
Photo Credit:
CDC Organization
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.