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Freezing DTaP Vaccine Linked to Rise in Pertussis

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Major Finding: Some 24% of refrigerators used to store DTaP vaccine experienced freezing temperatures. The higher the percentage of refrigerators with prolonged freezing in a health region, the higher that region’s rate of pertussis.

Data Source: An observational study of 54 vaccine refrigerators in 13 community health centers having about 580,000 outpatient visits annually.

Disclosures: Dr. McColloster said he did not have any conflicts of interest related to the study.

FROM THE ANNUAL MEETING OF THE NORTH AMERICAN PRIMARY CARE RESEARCH GROUP

Dr. McColloster said he did not have any conflicts of interest related to the study.