The World Food Program (WFP) has pledged to offer further help to Chin state in western Burma plagued by rat infestation and other natural disasters leading to food shortage over the last three years. Swe Swe Win, program officer of WFP?s office in Burma?s former capital Rangoon on Tuesday said, WFP will continue its assistance program in the country including Chin State under the new Protracted Relief and Recovery Operation (PRRO), which will continue from 2010 to 2012 to improve food security, nutrition status and livelihood of the vulnerable population in Myanmar. The amount of the operation is not available.