ID#: 30338
Caption:
This historic image shows the left hand of a Centers for Disease Control (CDC) laboratory technician placing a wire test tube rack into a laboratory freezer unit. The rack contains a single labeled black screw-top test tube with an additional label reading “Freeze.”
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Content Provider(s): CDC
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Copyright Restrictions: Permission is not required for public domain images, however, these images are provided by CDC and are available for personal, professional, and educational use with appropriate attribution. Redistribution must credit CDC and, where known, the individual photographer, and identify the CDC website as the free source. For additional terms see Use of Agency Materials | Other | CDC