This report updates the 2001 recommendations by the Advisory Committee on Immunization Practices (ACIP) regarding the use of influenza vaccine and antiviral agents (MMWR 2001;50 [No. RR-4]:1-44). The 2002 recommendations include new or updated information regarding 1) the timing of influenza vaccination by risk group; 2) influenza vaccine for children aged 6-23 months; 3) the 2002-2003 trivalen...