Year-wise distribution of V. cholerae isolation
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2004 | 0 | 0 | 3 | 5 | 15 | 15 | 14 | 19 | 3 | 1 | 4 | 0 | 79 |
| 2005 | 0 | 1 | 7 | 2 | 0 | 2 | 10 | 23 | 2 | 1 | 0 | 1 | 49 |
| 2006 | 0 | 0 | 0 | 3 | 1 | 4 | 8 | 1 | 6 | 6 | 1 | 0 | 30 |
| 2007 | 0 | 0 | 5 | 10 | 10 | 4 | 40 | NC | NC | NC | NC | NC | 69 |
| 2008 | NC | NC | NC | NC | NC | 2 | 7 | 10 | 11 | 7 | 1 | 5 | 43 |
| 2009 | 5 | 8 | 0 | 0 | 1 | 2 | 30 | 9 | 12 | 2 | 2 | 0 | 71 |
| 2010 | 0 | 3 | 5 | 0 | 6 | 0 | 14 | 13 | 2 | 2 | 3 | 4 | 52 |
| 2011 | 1 | 4 | 0 | 5 | 2 | 0 | 1 | 4 | 3 | 1 | 1 | 0 | 22 |
| 2012 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 4 |
| 2013 | 0 | 1 | 0 | 0 | 0 | 1 | 11 | 4 | 3 | 0 | 0 | 0 | 20 |
| Total | 6 | 17 | 20 | 25 | 36 | 31 | 136 | 83 | 43 | 20 | 12 | 10 | 439 |
NC, culture of stool specimens not performed; V. cholerae, Vibrio cholerae.