Table 2.

Base distribution of somatic mutations in CDR AGY Ser codons.

Immunogen	AGY (%)	AGY (%)	AGY (%)	2 changes (%)	3 changes (%)
Influenzaa	12	53	11	20	4
Influenzab	11	52	15	20	2
West Nile	0	80	20	0	0
Dengue	15	57	14	14	0
Rhinovirus	0	22	19	52	7
Avian Influenza	0	67	33	0	0
Hep. A, B, and C	12	35	18	35	0

^aAntibody sequences from Wrammert et al. (23).

^bAntibody sequences from Li et al. (24).