Table 1.
The serotype distribution of Shigella isolates in the Andaman Islands during 2000–2011
| Species | 2000 (N = 12) | 2001 (N = 7) | 2002 (N = 14) | 2003 (N = 13) | 2004 (N = 18) | 2005 (N = 10) | 2006 (N = 3) | 2007 (N = 3) | 2008 (N = 27) | 2009 (N = 17) | 2010 (N = 32) | 2011 (N = 6) | Overall (N = 162) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S. flexneri | |||||||||||||
| 2a | 4 (33·3) | — | 1 (7·1) | 1 (7·7) | 6 (33·3) | 1 (10·0) | 2 (66·7) | 3 (100·0) | 17 (62·9) | 6 (35·3) | 13 (41·0) | 3 (50·0) | 57 (35·2) |
| 2b | — | — | 2 (14·3) | — | 1 (5·5) | — | — | — | — | — | — | — | 3 (1·8) |
| 4a | — | 1 (14·3) | — | — | 1 (5·5) | — | — | — | 3 (11·1) | — | 1 (3·1) | — | 6 (3·7) |
| 3b | — | — | — | — | — | — | — | — | 2 (7·4) | — | — | — | 2 (1·2) |
| 3a | — | 1 (14·3) | 1 (7·1) | — | 1 (5·5) | 1 (10·0) | — | — | — | — | 1 (3·1) | — | 5 (3·1) |
| 1a | — | — | 3 (21·4) | — | — | — | — | — | — | — | 1 (3·1) | — | 4 (2·5) |
| 1b | — | — | 3 (21·4) | — | — | — | — | — | — | — | — | — | 3 (1·8) |
| 6 | — | — | — | — | 1 (5·5) | — | — | — | — | 1 (5·9) | — | — | 2 (1·2) |
| X | — | — | 1 (7·1) | 1 (7·7) | — | — | — | — | — | — | 2 (6·3) | — | 4 (2·5) |
| Y | — | — | — | — | 2 (11·1) | — | — | — | — | — | — | — | 2 (1·2) |
| S. sonnei | 1 (8·3) | 5 (7·1) | 2 (14·3) | 10 (76·9) | 6 (33·3) | 8 (80·0) | — | — | 2 (7·4) | 8 (47·1) | 11 (34·4) | 2 (33·3) | 55 (33·9) |
| S. dysenteriae | — | ||||||||||||
| 1 | — | — | — | 1 (7·7) | — | — | 1 (33·3) | — | — | 1 (5·9) | — | — | 3 (1·8) |
| 2 | 1 (8·3) | — | — | — | — | — | — | — | 3 (11·1) | — | 2 (6·3) | — | 6 (3·7) |
| 3 | — | — | — | — | — | — | — | — | — | 1 (5·9) | — | — | 1 (0·6) |
| 5 | — | — | 1 (7·1) | — | — | — | — | — | — | — | — | — | 1 (0·6) |
| S. boydii 1 | 6 (50·0) | — | — | — | — | — | — | — | — | — | 1 (3·1) | 1 (27·7) | 8 (4·9) |
Values given are n (%).