Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content


This 2007 photograph, showed Centers for Disease Control and Prevention (CDC) biologist, Damian Danavall, preparing what is known as a mastermix, for a multiplex real time PCR assay, which can differentiate between four, sexually transmitted organisms, known to be the cause for vaginal and urethral discharges. A PCR, or polymerase chain reaction, produces large amounts of replicated DNA, or RNA molecular sequences. Using this process, very small amounts of these nucleic acid molecules can be analyzed, upon the completion of the replication process. Mr. Danavall is a National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP) staff member, who works inside the center’s Laboratory Reference and Research Branch (LRRB).
High Resolution: Click here for hi-resolution image (13.28 MB)
Content Providers(s):CDC/ Hsi Liu, Ph.D., MBA, James Gathany
Creation Date:2007
Photo Credit:James Gathany
CDC Organization
Skip Navigation Links.

Skip Navigation Links.
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.