| meningococcal disease--management of serogroup c clusters in a hyperendemic area. | recent evidence in ireland highlights an increased incidence of meningococcal disease, with group b the prominent serogroup. however, in developed countries, 'clusters 'are predominantly group c. to retrospectively analyse all patients with meningococcal disease in the north eastern health board (nehb) region (circa 300,000 population) from january 1997 to december 1998 inclusively, and to highlight the occurrence of two 'clusters' of group c meningococcal disease, one in drogheda and the other ... | 2001 | 11495231 |