From the *Department of Epidemiology, University of Michigan, School of Public Health; and the †Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI
Accepted for publication October 19, 2005.
Dr Gilsdorf was supported by Public Health Services grant AI25630 from the National Institute of Allergy and Infectious Diseases. Drs Gilsdorf and Pettigrew were supported by a grant from the Deafness Research Foundation. Collection of throat cultures was funded by a grant from the Michigan Department of Community Health and Michigan Antibiotic Resistance Reduction Coalition (to Dr Foxman).
Dr Farjo's current address is the Department of Pediatrics, St. John Hospital and Health System, Detroit, MI. Dr McCoy's current address is the Department of Epidemiology, the University of North Carolina at Chapel Hill, Chapel Hill, NC. Dr Pettigrew's current address is Yale University, School of Public Health.
Address for reprints: Cibele Barbosa-Cesnik, MD, MPH, Department of Epidemiology, University of Michigan, School of Public Health, 109 S. Observatory, Ann Arbor, MI 48109. Fax 734-936-6732; E-mail email@example.com.