1. Clusters of acute respiratory illness associated with human enterovirus 68 – Asia, Europe, and United States, 2008–2010;Centers for Disease Control and Prevention;MMWR,2011
2. Severe hand, foot, and mouth disease associated with coxsackievirus A6 – Alabama, Connecticut, California, and Nevada, November 2011–February 2012;Centers for Disease Control and Prevention;MMWR,2012
3. Progress toward interruption of wild poliovirus transmission – worldwide, January 2011–March 2012;Centers for Disease Control and Prevention;MMWR,2012
4. Progress toward global polio eradication – Africa, 2011;Centers for Disease Control and Prevention;MMWR,2012
5. The polio endgame;Aylward;N Engl J Med,2011