What is the primary health concern regarding Bali's tap water for visitors?
Answer
Presence of bacteria or pathogens unfamiliar to visitors
The fundamental reason for visitor caution with tap water in Bali stems from the potential presence of bacteria or pathogens. While these microbes might be tolerated by the digestive systems of local residents who have developed immunity or acclimatization over time, they can easily introduce significant gastrointestinal distress, such as diarrhea or more serious illness, into a visitor’s system. This difference in microbial tolerance is central to the advice promoting avoidance of local tap water for consumption.

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