Table 3.
Laboratory tests of the food and environmental specimens.
| Specimens | Sample Name | No. of Samples | Test Result (%) |
Bacterial Strain |
|---|---|---|---|---|
| Food Poisoning Bacteria (16 species) and Virus (6 species) * | Preserved food | 39 | Not detected | |
| Knife, cutting board, dishcloth | 3 | Not detected | ||
| Drinking water | 4 | Not detected | ||
| Cooking water (from village water supply) |
1 | 1(100.0) | EPEC O87 | |
| Dishwashing water (from village water supply) |
1 | 1 (100.0) | EPEC O87 | |
| Drinking waterborne contaminants (9 items) ** | Cooking water (from Village water supply) | 1 | Total coliforms (+), faecal coliforms (+) | |
| Drinking water (from Village water supply) | 1 | Total coliforms (+), faecal coliforms (+) | ||
| Main school water Purifier (from Village water supply) | 1 | Total coliforms (+) | ||
| Boiled water in cafeteria | 1 | Not detected | ||
| Purified water in ‘A’ branch school | 1 | Not detected | ||
| Purified water in ‘B’ branch school | 1 | Not detected |
* Bacteria: Cholera, Salmonella typhi, Salmonella paratyphi, Shigellosis, enterohemorrhagic E. coli, Salmonella spp., Vibrio parahaemolyticus, enterotoxic E. coli, enteroinvasive E. coli, enteropathogenic E. coli, Campylobacter jejuni, Clostridium perfringens, Staphylococcus aureus, Bacillus cereus, Yersinia enterocolitica, and Listeria monocytogenes; Virus: Hepatitis A, Rotavirus, Astrovirus, Adenovirus, Norovirus, and Sapovirus. ** Total colonies, total coliforms, faecal coliforms, NH3-N, NO3-N, residual chlorine, KMnO (consumed), Cl−, and SO42−.