1. Pertussis—United States, January 1992–June 1995;Centers for Disease Control and Prevention;MMWR Morb Mortal Wkly Rep,1995
2. Pertussis vaccination: use of acellular pertussis vaccines among infants and young children;Recommendations of the Advisory Committee on Immunization Practices (ACIP);MMWR Recomm Rep,1997
3. Historical national population estimates: July 1, 1900 to July 1, 1999;U.S. Census Bureau,2014
4. Epidemic pertussis in 2012—the resurgence of a vaccine-preventable disease;Cherry;N Engl J Med,2012
5. Table 1. Annual estimates of the population for the United States, regions, states, and Puerto Rico: April 1, 2010 to July 1, 2012;U.S. Census Bureau,2014