Table 5. Antigenicity-associated sites of H3N2 identified using the support vector regression based on recursive feature elimination.

Order of variable importance	Amino acid position
1	189
2	133
3	155
4	193
5	158
6	216
7	144
8	285
9	159
10	145
11	137
12	196
13	129	132
14	271
15	131
16	175
17	135

Experimentally validated sites were marked as bold. Accessory substitutions were marked as italic.