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Reed, Carrie, Frederick J. Angulo, David L. Swerdlow, Marc Lipsitch, Martin I. Meltzer, Daniel Jernigan, und Lyn Finelli. Estimates of the Prevalence of Pandemic (H1N1) 2009, United States, April–July 2009. Centers for Disease Control and Prevention, 2009.

Reed, Carrie, et al. Estimates of the Prevalence of Pandemic (H1N1) 2009, United States, April–July 2009. Centers for Disease Control and Prevention, 2009.