Table 1 The circulation of C. diphtheriae biotypes in Belarus (1996–2005)
Year | Total strains | C. diphtheriae biotype | |||||
|---|---|---|---|---|---|---|---|
gravis | mitis | belfanti | |||||
no. | % | no. | % | no. | % | ||
1996 | 486 | 316 | 65.0 | 168 | 34.6 | 2 | 0.4 |
1997 | 410 | 231 | 56.3 | 170 | 41.5 | 9 | 2.2 |
1998 | 362 | 209 | 57.7 | 129 | 35.7 | 24 | 6.6 |
1999 | 339 | 220 | 64.9 | 115 | 33.9 | 4 | 1.2 |
2000 | 403 | 241 | 59.8 | 152 | 37.7 | 10 | 2.5 |
1996–2000 | 2000 | 1217 | 60.8 | 734 | 36.7 | 49 | 2.5 |
2001 | 408 | 187 | 45.8 | 192 | 47.1 | 29 | 7.1 |
2002 | 310 | 130 | 41.9 | 160 | 51.6 | 20 | 6.5 |
2003 | 213 | 66 | 31.0 | 131 | 61.5 | 16 | 7.5 |
2004 | 290 | 100 | 34.5 | 169 | 58.3 | 21 | 7.2 |
2005 | 292 | 114 | 39.0 | 171 | 58.6 | 7 | 2.4 |
2001–2005 | 1513 | 597 | 39.5 | 823 | 54.4 | 93 | 6.1 |