1. Centers for Disease Control and Prevention (2010) Recommended adult immunization schedule—United States.
http://www.cdc.gov/vaccines/recs/schedules/downloads/adult/2010/adult-schedule.pdf
. Accessed 15 Nov 2010
2. National Center for Health Statistics—United States (2007 (Revised 2008)) Vaccination coverage among U.S. adults, National Immunization Survey—Adult.
http://www.cdc.gov/vaccines/stats-surv/nis/downloads/nis-adult-summer-2007.pdf
. Accessed 15 Nov 2010
3. California Department of Public Health (2010) Pertussis report. p 5
4. Wendelboe A et al. (2007) Transmission of Bordetella pertussis to young infants. Pediatr Infect Dis J 26(4):293–299
5. Centers for Disease Control and Prevention (2010) Catch-up Immunization Scheduler for children six years of age and younger.
http://www.cdc.gov/vaccines/recs/Scheduler/catchup.htm
. Accessed 15 Nov 2010