The MMWR for April 8, 2011 / Vol. 60 / No. 13 includes:
– Measles Imported by Returning U.S. Travelers Aged 6–23 Months, 2001–2011

– Assessment of ESSENCE Performance for Influenza-Like Illness Surveillance After an Influenza Outbreak — U.S. Air Force Academy, Colorado, 2009

– Assessing Completeness of Perinatal Hepatitis B Virus Infection Reporting Through Comparison of Immunization Program and Surveillance Data — United States

– Notes from the Field: Measles Outbreak — Hennepin County, Minnesota, February–March 2011

http://www.cdc.gov/mmwr/pdf/wk/mm6013.pdf