<prompt> During water analysis in a hostel, amoebic cysts were seen. The best step to manage it is ?IodineBoilingU.V RaysChlorination  <response>: Ans. is a i.e., Iodine Amoebic injection is spread by ingestion ref food or water contaminated with cysts. since an asymptomatic carrier may excrete upto 15 million cystsday. Prevention of infection requires adequate sanitation and eradication of cyst carriage. In high risk areas infection can he minimized by avoidance of unpeeled fruits and the use of Bottled water o Because cysts are resistant to readily attainable levels of chlorine, disinfection by iodination Tetraglycine hyperiodide is recomtnended. - Harrison 