Implementation of each vector control method in pair villages (population size) in December 2008.

LLIN, Long lasting insecticidal net; ITPS-ZF, insecticide treated plastic sheeting-Zero Fly®; ITPS-DL, Durable wall lining; IRS, Insecticide residual spraying.1, Parasitic index (% of infected people) based on a survey done in April 2006.2, IRS done twice in Dec 08 and June 09.LLIN，即长效杀虫蚊帐（Long lasting insecticidal net）；ITPS-ZF，即经杀虫剂处理的塑料布-Zero Fly®；ITPS-DL，即耐用墙面衬里（Durable wall lining）；IRS，即杀虫剂滞留喷洒（Insecticide residual spraying）。1. 寄生虫指数（感染人群占比%）基于2006年4月开展的调查。2. 分别于2008年12月与2009年6月完成两次杀虫剂滞留喷洒。