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Table 2 The circulation of toxigenic C. diphtheriae in Belarus (1996–2005)

From: Molecular epidemiology of C. diphtheriaestrains during different phases of the diphtheria epidemic in Belarus

Year C. diphtheriae Total strains
  gravis mitis belfanti    
  total strains tox + total strains tox + total strains tox + no. tox +
   no. %   no. %   no. %   no. %
1996 316 208 65.8 168 21 12.5 2 0 0 486 229 47.1
1997 231 137 59.3 170 12 7.0 9 0 0 410 149 36.3
1998 209 71 34.0 129 0 0 24 0 0 362 71 19.6
1999 220 99 45.0 115 5 4.3 4 0 0 339 104 30.7
2000 241 115 47.7 152 5 3.3 10 0 0 403 120 29.8
1996–2000 1217 630 51.8 734 43 5.9 49 0 0 2000 673 33.7
2001 187 54 28.9 192 1 0.5 29 0 0 408 55 13.5
2002 130 25 19.2 160 0 0 20 0 0 310 25 8.1
2003 66 12 18.2 131 4 3.1 16 0 0 213 16 7.5
2004 100 40 40.0 169 16 9.5 21 0 0 290 56 19.3
2005 114 20 17.5 171 0 0 7 0 0 292 20 6.8
2001–2005 597 148 24.8 823 21 2.6 93 0 0 1513 169 11.2