1. Tracking progress towards global polio eradication, 2011 - 2012. Wkly Epidemiol Rec. 2013; 88(15):153-60
2. Resurgence of wild poliovirus type 1 transmission and consequences of importation--21 countries, 2002-2005. MMWR Morb Mortal Wkly Rep. 2006; 55(6):145-50
3. Wild poliovirus type 1 and type 3 importations--15 countries, Africa, 2008-2009. MMWR Morb Mortal Wkly Rep. 2009; 58(14):357-62
4. Progress toward interruption of wild poliovirus transmission--worldwide, January 2007-April 2008. MMWR Morb Mortal Wkly Rep. 2008; 57(18):489-94
5. Poliomyelitis in Tajikistan: first importation since Europe certified polio-free. Wkly Epidemiol Rec. 2010; 85(18):157-58.