In September 2015, the dengue fever outbreak occurredin southern Taiwan; therefore, to effectively reduce the sources of dengue vectors, the government conducted Cleanliness campaign and surveillance program of outdoor dengue vector breeding sources in 4 townships of Chiayi and 6 districts of Tainan in Taiwan, 2016. This project was conducted in surveillance of dengue vectors with ovitraps, cleanliness campaign, health education and questionnaire survey and to organize conferences with experts.The results shows positive ovitrap rates remained at a high level at Chiayi City from Apr. to Nov., and all the vectors detected are Aedes albopictus. The surveillance using ovitraps at Heping Vil. of East Dist., Chunghsing Vil. of Yongkang Dist. and Dahong Vil. of Sinying Dist. of Tainan City showed that positive rate was over 20% for 18, 14 and 14 weeks, respectively. The Ae. aegypti rate in LiouJia Vil. and YanPing Vil. of North Dist., SinSing Vil. of South Dist., MinSheng Vil.and MinQuanVil. were high, especially in SinSing Vil.(94.0%). The results of high risk regions provide a reference for application of prevention and control resources, and hoping to make prevention and control measures more efficiently.We recorded 3,581 potential mosquito breeding sites, and uploaded the recordings to Ecolife APP, which can notify the responsible cleanup crews for cases reported in its jurisdiction.In addition, we completed 739 questionnaires and randomly selected the residents lived in Chiayi and Tainan for realizing the public’s knowledge, attitude and behavior for the dengue control program. Almost all residents knew mosquitoes transmit dengue fever, but only 39.0% of residents knew the dengue vector biting was in the daytime. Health education might have to emphasize on dengue vector biting timing. Residents had water-filled containers in the indoor and outdoor environments were only 22.6%. In the behaviors of cleaning water-filled containers regularly every week, there were 60.4%. It will be necessary to educate residents to remove unused containers for reducing these resources of dengue vectors.Conferences were held in Jul. and Nov., experts provided some positive suggestions for this program, including methods, surveillance, cleanliness campaign and future programs.

dengue fever, mosquito vectors, cleanliness campaign