Update: influenza activity--United States, 1991-92

From late October through November 20, 1991, state health departments reported outbreaks of culture-confirmed influenza A(H3N2) in public schools in Texas and a university in Tennessee. In addition, Alabama, Georgia, Minnesota, North Carolina, Ohio, and Tennessee reported outbreaks of culture-confirmed influenza A (not subtyped) in schools. In these outbreaks, school absentee rates ranged from 11% to 40%; school closures were reported in Ohio and Tennessee.