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

SeasonMonthsV. 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
WinterDecember,
January,
February
7.2 × 103 ± 1.7 × 104
(0–7.5 × 104)
000/4241/421/42
SpringMarch,
April,
May
1.4 × 105 ± 4.0 × 105
(0–1.5 × 106)
3.5 × 104 ± 1.9 × 105
(0–1.2 × 106)
25.6230/360/366/36
MonsoonJune,
July,
August
1.3 × 105 ± 2.8 × 105
(0–1.0 × 106)
000/4234/428/42
FallSeptember,
October,
November
3.4 × 105 ± 5.5 × 105
(2.5 × 101–2.4 × 106)
1.11 × 102 ± 3.98 × 102
(0–2.0 × 103)
0.0336/360/360/36