 Despite never officially reaching typhoon strength , Bilis was responsible for $ 4 @.@ 4 billion ( 2006 USD ) in damage and 859 fatalities in the Philippines , Taiwan , and China . Most of the damage was caused by heavy rain , which triggered widespread flash flooding and landslides . Many of the areas Bilis flooded were later affected by Typhoon Kaemi , Typhoon Prapiroon , and intense Typhoon Saomai . 
