Immunization, Vaccines and Biologicals

WHO/V&B/03.19

The immunization data quality audit (DQA) procedure

The DQA was conceived as a means to verify reported performance as well as assess immunization monitoring and reporting systems. It reviews both the numbers of children reported to have received a DTP3 injection and the accuracy of the EPI reporting system. The document describes the standard DQA methodology as conducted by auditors external to the country audited.

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