| sorbitol-fermenting bifidobacteria are indicators of very recent human faecal pollution in streams and groundwater habitats in urban tropical lowlands. | sorbitol-fermenting bifidobacteria (sfb) proved to be an excellent indicator of very recent human faecal pollution (hours to days) in the investigated tropical stream and groundwater habitats. sfb were recovered from human faeces and sources potentially contaminated with human excreta. sfb were undetectable in animal faeces and environmental samples not contaminated with human faeces. microcosm studies demonstrated a rapid die-off rate in groundwater (t90 value 0.6 days) and stream water (t90 va ... | 2010 | 20375476 |