Dengue Haemorrhagic Fever (DHF) control focuses on preventation efforts with the mosquito nest eradication movement (PSN). The larva free number (ABJ) is an indicator of the success of PSN and early prevention by ensuring a negative house with Aedes sp. This research is descriptive used secondary data on Indonesia’s health profile in 2010-2019. This study describes cases of DHF, incidence rate and larva free rate (ABJ) for 10 years. The results showed that DHF cases in Indonesia from 2010-2019 fluctuating where the higehest cases occurred in 2016 which was 204.171 cases and the lowest occurred in 2018 which was 65.602 cases. The highest incidence of DHF occurred in 2016 which was 78,85 per 100.000 population. Indonesia’s ABJ for 10 years is still below the target <95% in the range 24,1-80,2%. Transmission of DHF still occurs in Indonesia, this can be seen from the still finding cases of DHF every year and indicators of morbidity due to DHF which is still high above 49 per 100.000 population. The low ABJ affects the occurrence of dengue cases in Indonesia.

Filariasis elimination program in West Bangka Regency had been in the fourth year to stop MDA filariasissurveillance period. This study aims to describe the condition of the community covering microfilariaemiarate, knowledge, attitudes, behavior, and environment of filariasis Data was collected through interviewsand examination of venous blood filtration to 150 people in four selected villages. Result showed thatthree respondents were positive Brugia malayi microfilariae with density of microfilariae was 116, 245and 112 respectively. Respondents’ knowledge about the symptoms, modes of transmission, consequencesand ways of preventing filariasis was still very low.. Most respondents had received preventive treatmentof filariasis, but only 2% had taken medicine to prevent filariasis for five times. Behavior of respondentsto prevent themself against mosquito bites using mosquito nets (73.3%) and mosquito repellent (65.3%).Most respondents had the habit of going out at night (78.7%). Swamp was found (23.3%) and reservoirhost (cats) by 40.7% of respondents around the house. The presence of positive microfilariae indicates thatthe presence of transmission of filariasis. The presence of swamps shows the availability of the potentialbreeding places of the vector. Cats around the house can be a source of transmission of filariasis.Keywords: microfilariaemia rate, KAP, environment, West Bangka AbstrakProgram eliminasi filariasis di Kabupaten Bangka Barat telah memasuki tahun ke empat tahap surveilansperiode stop POPM filariasis. Penulisan ini bertujuan untuk mengetahui gambaran kondisi masyarakatyang meliputi: microfilariaemia rate, pengetahuan, sikap, perilaku dan lingkungan masyarakat tentangfilariasis. Pengumpulan data dilakukan melalui wawancara dan pemeriksaan darah vena dengan metodefiltrasi terhadap 150 orang yang berada di empat desa Hasil menunjukkan bahwa ditemukan tigaresponden positif mikrofilaria (mf) dengan spesies Brugia malayi dan kepadatan pada masing-masingpenderita sebesar 116, 245 dan 112. Pengetahuan responden mengenai gejala, cara penularan, akibat yangditimbulkan dan cara pencegahan filariasis masih rendah. Sebagian besar responden pernah mendapatkanpengobatan pencegahan filariasis, akan tetapi hanya 2% yang pernah minum obat sebanyak lima kali.Perilaku responden terhadap upaya perlindungan diri terhadap gigitan nyamuk dilakukan denganmenggunakan kelambu (73,3%) dan anti nyamuk (65,3%). Sebagian besar responden mempunyaikebiasaan keluar rumah pada malam hari (78,7%). Ditemukan rawa (23,3%) dan hewan reservoir(kucing) sebesar 40,7% di sekitar rumah responden. Masih ditemukannya penderita positif microfilariamengindikasikan adanya penularan filariasis. Adanya rawa menunjukkan tersedianya tempat perindukanvector filariasis yang potensial. Kucing sebagai reservoir yang ditemukan di sekitar rumah dapat menjadisumber penularan filariasis.Kata kunci: microfilariaemia rate, pengetahuan, sikap, perilaku, lingkungan, Bangka Barat

Belitung district in Bangka-Belitung Province, Indonesia with a population of 0.27 million is endemic for Brugia malayi and 5 rounds of mass drug administration (MDA) were completed by 2010. Based on the results of 3 transmission assessment surveys (TAS), the district is declared as achieving elimination of lymphatic filariasis (LF) in 2017. The findings of an independent survey conducted by the National Institute of Health Research and Development (NIHRD) in the same year showed microfilaria (Mf) prevalence of 1.3% in this district. In 2019, NIHRD conducted microfilaria survey in 2 villages in Belitung district. Screening of 311 and 360 individuals in Lasar and Suak Gual villages showed Mf prevalence of 5.1% and 2.2% with mean Mf density of 120 and 354 mf/ml in the respective villages. Mf prevalence was significantly higher among farmers and fishermen compared to others and the gender specific difference was not significant. The results of a questionnaire based interview showed that 62.4% of the respondents reported to have participated in MDA in Lasar while it was 57.7% in Suak Gual village. About 42% of the Mf positive cases did not participate in MDA. Environmental surveys identified many swampy areas supporting the breeding of Mansonia vector species. Persistence of infection is evident and in the event of successful TAS3 it is necessary to monitor the situation and plan for focal MDA. Appropriate surveillance strategies including xenomonitoring in post-MDA situations need to be developed to prevent resurgence of infection. Possible role of animal reservoirs is discussed.

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