dramatic decline of serogroup c meningococcal disease in catalonia (spain) after a mass vaccination campaign with meningococcal c conjugated vaccine. | in the last quarter of the year 2000, the meningococcal c conjugated vaccine was incorporated into the routine vaccination schedule in catalonia (at 2, 4 and 6 months). in addition a vaccination campaign was carried out in children <6 years of age, with a coverage of 96.2%. the effectiveness of the vaccination in this age group during 2001 and the first 28 weeks of 2002 was 100% (94.27-100%). a vaccination campaign has been carried out in 6-19-year olds during 2001 and 2002, with a coverage rate ... | 2003 | 12531350 |