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ID#:12130
Description:This historic 1963 photograph depicted laboratorian, Deanne Tolson, as she was preparing vials containing an unknown reagent, for lyophilization, otherwise known as freeze-drying, prior to their shipment. Lyophilization prolongs the lifespan of perishable materials, so that they may be shipped, and stored for a much longer time, often without the need for refrigeration.
At the time of this photograph, what is now known as the Centers for Disease Control and Prevention (CDC), was until 1970, then known as the Communicable Disease Center.

Modern day protocols now call for the laboratorian executing such tasks, to wear personal protective equipment (PPE) including safety goggles, gloves, and a face mask. PPE, as defined by the Occupational Safety and Health Administration, or OSHA, is “specialized clothing or equipment, worn by an employee for protection against infectious materials.”

High Resolution: Click here for hi-resolution image (18.9 MB)
Content Providers(s):CDC/ Dr. U.P. Kokko
Creation Date:1963
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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.

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