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Volume 8, Number 12—December 2002

Dispatch

Capsule Switching among C:2b:P1.2,5 Meningococcal Epidemic Strains after Mass Immunization Campaign, Spain

Belén Alcalá*, Luisa Arreaza*, Celia Salcedo*, María J. Uría*, Laura De La Fuente*, and Julio A. Vázquez*Comments to Author 
Author affiliations: *Centro Nacional de Microbiología–Instituto de Salud Carlos III, Madrid, Spain;

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Table 2

Frequency of the B:2b:P1.2,5 and C:2b:P1.2,5 meningococcal strains characterized by the laboratory, 1995–2000

Year No. of strains received by the laboratory No. of C:2b:P1.2,5 (%) No. of B:2b:P1.2,5 (%)
1995 254 56 (22%) 1 (0.4%)
1996 380 176 (46.3%) 1 (0.26%)
1997 687 313 (45.5%) 2 (0.3%)
1998 554 149 (26.9%) 2 (0.36%)
1999 598 144 (24.1%) 5 (0.84%)
2000 502 97 (19.3%) 4 (0.8%)

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