TABLE 3 .
Culturability and morphology of V. cholerae O1 in water samples collected from the estuarine environment of Bangladesh during different seasons of the year
| Season | Months |
V. cholerae O1 count (mean ± SD [min-max]) by: |
% of culturable V. cholerae O1 |
No. of samples with cells with indicated morphology/total no. of samples |
|||
|---|---|---|---|---|---|---|---|
| DFA (cells/ml) | Culture (CFU/ml) | Curved rods, dividing rods, and thin biofilms |
Coccoid, short rods, and thick biofilms |
Other | |||
| Winter | December, January, February |
7.2 × 103 ± 1.7 × 104 (0–7.5 × 104) |
0 | 0 | 0/42 | 41/42 | 1/42 |
| Spring | March, April, May |
1.4 × 105 ± 4.0 × 105 (0–1.5 × 106) |
3.5 × 104 ± 1.9 × 105 (0–1.2 × 106) |
25.62 | 30/36 | 0/36 | 6/36 |
| Monsoon | June, July, August |
1.3 × 105 ± 2.8 × 105 (0–1.0 × 106) |
0 | 0 | 0/42 | 34/42 | 8/42 |
| Fall | September, October, November |
3.4 × 105 ± 5.5 × 105 (2.5 × 101–2.4 × 106) |
1.11 × 102 ± 3.98 × 102 (0–2.0 × 103) |
0.03 | 36/36 | 0/36 | 0/36 |