These recommendations update for 1985-86 the information on the vaccine and antiviral agent available for control of influenza. Changes include addition of statements about the route of vaccine administration; the use of amantadine in medical personnel during influenza A outbreaks; the need to prepare contingency plans to expedite use of amantadine in aborting influenza A outbreaks among residents of institutions; and reduction in the dosage of amantadine for older patients or persons with seizure disorders.