School-based clusters of meningococcal disease in the United States.

Presents a study in which researchers evaluated the epidemiologic features and risk factors for multiple cases of meningococcal disease in schools in the United States. Study design; Setting; Main outcome measures; Results, including the identification of 22 clusters of meningococcal disease; Benefits of rapid initiation of a chemoprophylaxis program; Vaccination in prevention; Other conclusions.