Giardia: Giardiasis refers to a syndrome of diarrhea, excess gas, and abdominal cramping. It is caused by Giardia lamblia, a water-borne parasite that is worldwide in distribution. The symptoms ...

Heavy downpours. On 19 August 2004, there was 29.6 mm of rainfall, followed by a further 24.8 mm the next day and 17.4 mm the day after that. Over the preceding 24 days, there had been only 9.6 mm of ...