Skip to main content
Fig. 5 | Gut Pathogens

Fig. 5

From: Occurrence of Escherichia coli and faecal coliforms in drinking water at source and household point-of-use in Rohingya camps, Bangladesh

Fig. 5

Risk categories of contamination. WHO (2011) has developed a classification and color-code scheme for E. coli colonies per 100 mL water sample which are (i) in conformity with WHO guideline—blue (0/100 mL); (ii) low risk—green (1–< 10/100 mL); (iii) intermediate risk—yellow (10–< 100/100 mL); (iv) high risk—orange (100–< 1000/100 mL); (v) very high risk—red (> 1000/100 mL)

Back to article page

Gut Pathogens

ISSN: 1757-4749