RT Journal T1 Notes from the field: Use of tetanus, diphtheria, and pertussis vaccine (tdap) in an emergency department—arizona, 2009-2010 JF JAMA JO JAMA YR 2012 FD April 25 VO 307 IS 16 SP 1687 OP 1688 DO UL http://dx.doi.org/ AB Because of an increasing incidence of reported pertussis cases attributed to waning immunity among adults and adolescents, the Advisory Committee on Immunization Practices (ACIP) in 2005 recommended administration of a new, combined tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccine (Tdap) for adolescents and adults aged 11-64 years.1 ACIP recommended that they receive a single dose of Tdap to replace tetanus and diphtheria toxoid vaccine (Td) for booster immunization against tetanus and diphtheria if they had not previously received Tdap. Adults aged ≥65 years were to receive Td according to ACIP recommendations.1 To learn whether these age-specific recommendations were being followed in an emergency department (ED), the charts of a sample of patients receiving tetanus vaccines at a large ED were reviewed.