Pertussis admissions ranged from 0 to 7.4 per 10,000 hospitalizations from 1996 to 2003, and from 16.3 to 27.4 per 10,000 hospitalizations from 2004 to 2006. A total of 78% of patients were <4 months old, and 52% had a sick contact that was a family member. A total of 29% of patients required intensive care unit admission, and 3 died during the last 2 years of the study.
From the *Department of Medical Education, Driscoll Children's Hospital, Corpus Christi, TX; †Department of Pediatrics, College of Medicine, Texas A&M Health Science Center, College Station, TX; ‡Department of Pharmacy, CHRISTUS Santa Rosa Health Care, San Antonio, TX; and §Department of Pediatrics, School of Medicine, University of Texas Health Science Center, San Antonio, TX.
Accepted for publication August 25, 2009.
Address for correspondence: Kevin Purcell, MD, PharmD, MHA, 135 Saint Dennis Ave., San Antonio, TX 78209. E-mail: firstname.lastname@example.org.