The MMWR for 23 October 2009 / Vol. 58 / No. 41 includes:
– Introduction and Transmission of 2009 Pandemic Influenza A (H1N1) Virus — Kenya, June–July 2009
– Reduction in Rotavirus After Vaccine Introduction — United States, 2000–2009
– Progress Toward Poliomyelitis Eradication — Nigeria, January 2008–July 2009
