MMWR. Morbidity and mortality weekly report

Update: acquired immunodeficiency syndrome and human immunodeficiency virus infection among health-care workers -- Passive smoking: beliefs, attitudes, and exposures--United States, 1986 -- Update on influenza activity--United States and worldwide, with recommendations for influenza vaccine composition for the 1988-89 season -- Table I. Summary-cases specified notifiable diseases, United States -- Table II. Notifiable diseases of low frequency, United States -- Table III. Cases of specified notifiable diseases, United States, weeks ending April 16, 1988 and April 18, 1987 (15th week) -- Table IV. Deaths in 121 U.S. cities, week ending April 16, 1988 (15th week) -- Figure I. Reported measles cases\u2014United States, Weeks 11-14 19881988603