TABLE 1.
Distribution and frequency of rotavirus G types over 4 years (1998 to 2002) in Madrid, Spaina
| Rotavirus type | No. (%) of strains typed in the following rotavirus seasons:
|
||||
|---|---|---|---|---|---|
| 1998-1999 | 1999-2000 | 2000-2001 | 2001-2002 | Total | |
| G1 | 25 (18) | 23 (27) | 141 (71) | 117 (79) | 306 (53) |
| G2 | 2 (1) | 8 (9) | 47 (24) | 25 (17) | 82 (14) |
| G3 | 1 (1) | 10 (12) | 0 (0) | 0 (0) | 11 (2) |
| G4 | 97 (69) | 34 (40) | 5 (3) | 2 (1) | 138 (24) |
| G9 | 15 (11) | 11 (13) | 6 (3) | 3 (2) | 35 (6) |
| G1 and G2 | 0 (0) | 0 (0) | 0 (0) | 2 (1) | 2 (0.3) |
| G1 and G4 | 1 (1) | 0 (0) | 1 (1) | 0 (0) | 2 (0.3) |
| Total | 141 | 86 | 200 | 149 | 576 |
a
The G types of at least 50% of the rotavirus-positive samples obtained each season were determined.