US4 genotype | |||
A (n = 46) | B (n = 104) | C (n = 28) | |
US7 genotype | |||
A (n = 52) | 30 (16.9)* | 21 (11.8) | 1 (0.6) |
B (n = 86) | 14 (7.9) | 69 (38.8) | 3 (1.7) |
C (n = 40) | 2 (1.1) | 14 (7.9) | 24 (13.5) |
*Data are the number (%) of corneal HSV-1 isolates assigned to the indicated US4 and US7 genotypes A, B or C.