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This close-up photograph shows Jason Tully, a CDC laboratorian, using the pH meter in order to prepare a buffer solution in the Personal Care Products Laboratory (PCPL) located in the CDC's Chamblee, Georgia facilities

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The imagery showcased in the PHIL is historic in nature; the contents depicted, though appropriate at the time a photograph was captured, may no longer be appropriate in the context of the current time period, and is not to be viewed as a source of the most current public health information.

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