Table 2 Prevalence and levels of Vibrio parahaemolyticus in retail aquatic products from North China during different seasons
Season | No. of samples analyzed | No. of samples positive (%) | No. of samples containing the pathogen (MPN/g) | |||
|---|---|---|---|---|---|---|
3 to 10 | >10 to 102 | >102 to 103 | >103 | |||
Winter | 132 | 30 (22.7) | 25 | 4 | 1 | 0 |
Spring | 128 | 64 (50.0) | 43 | 18 | 2 | 1 |
Total | 260 | 94 (36.2) | 68 | 22 | 3 | 1 |