TABLE 1.
Year of isolation | Proportion of serotype | ||
---|---|---|---|
Ia | Ib/Ic | II | |
1999 | 100% (4/4) | 0% (0/4) | 0% (0/4) |
2003 | 50% (2/4) | 0% (0/4) | 50% (2/4) |
2004 | 50% (3/6) | 33% (2/6) | 17% (1/6) |
2005 | 0% (0/15) | 93% (14/15) | 7% (1/15) |
2007 | 100% (2/2) | 0% (0/2) | 0% (0/2) |
2013 | 100% (3/3) | 0% (0/3) | 0% (0/3) |
2014 | 83% (5/6) | 17% (1/6) | 0% (0/6) |
2015 | 100% (5/5) | 0% (0/5) | 0% (0/5) |
2018 | 73% (11/15) | 27% (4/15) | 0% (0/15) |
2019 | 75% (12/16) | 25% (4/16) | 0% (0/16) |
2021 | 81% (22/27) | 4% (1/27) | 15% (4/27) |
Total | 67% (69/103) | 25% (26/103) | 8% (8/103) |