<;P>;PROBLEM TO BE SOLVED: To obtain a virus removing agent which can catch and remove virus more effectively. <;P>;SOLUTION: The virus removing agent comprises fine powders of reef-building coral, has an average particle size of 10 &mu;m or less, and has an experimental proof, and which can adsorb virus and remove it effectively. <;P>;COPYRIGHT: (C)2009,JPO&INPIT