Australian Bat Lyssavirus cannot be contracted from drinking or using water from rainwater tanks that is contaminated with bat faeces. The risk of getting a gastro illness from bat faeces is no different to other animals.
To protect your water tank from contamination by any animal faeces, ensure your tank is covered, water treated, drained and cleaned on regular basis (in accordance with Queensland regulations).
- Rainwater tanks and flying-foxes in Cairns
- Bats and human health - Queensland Health (scroll down to 'Rainwater tanks and swimming pools)