Bioecology, Insecticide Susceptibility and Management of Culex quinquefasciatus Say, 1823: A Major Vector of Lymphatic Filariasis in India

2018 ◽  
pp. 199-210 ◽  
Author(s):  
Reji Gopalakrishnan ◽  
Vijay Veer
Keyword(s):  
Lymphatic Filariasis ◽  
Culex Quinquefasciatus ◽  
Insecticide Susceptibility

scholarly journals Analisis Spasial Kejadian Filariasi di Kabupaten Demak Jawa Tengah

2018 ◽  
Vol 17 (1) ◽  
pp. 46
Author(s):  
Nurjazuli Nurjazuli ◽  
Hanan Lanang Dangiran ◽  
Asty Awiyatul Bari'ah
Keyword(s):  
Spatial Analysis ◽  
Lymphatic Filariasis ◽  
Water Flow ◽  
Culex Quinquefasciatus ◽  
Index Case ◽  
Neglected Tropical Diseases ◽  
Observational Research ◽  
Positioning System ◽  
Tropical Diseases ◽  
Cross Sectional

Latar Belakang: Filariasis merupakan salah satu penyakit tular vektor yang kurang mendapatkan perhatian, termasuk kelompok Neglected Tropical Diseases (NTDs). Kabupaten Demak merupakan salah satu wilayah di Propinsi Jawa Tengah  yang merupakan daerah endemis filarisis (mf rate>1%). Kejadian filarisis di daerah ini diduga berkaitan dengan kondisi lingkungan fisik dan biologis (nyamuk) yang mempunyai peran penting dalam penyebaran penyakit filarisis. Penelitian ini bertujuan untuk menemukan adanya penderita baru,  mengidentifikasi kondisi lingkungan fisik dan biologi yang berkaitan dengan sebaran filarisis di Kabupaten Demak.Matede: Penelitian ini merupakan penelitian observasional dengan rancangan cross-sectional. Sebanyak 30 kasus filariasis dijadikan indek kasus yang selanjutnya dipilih secara purposif sebanyak 140 yang tinggal di sekitar 30 kasus tersebut untuk dilakukan pengamblan darah jari. Observasi lingkungan dilakukan untuk mengidentifikasi kondisi lingkungan (breeding places dan resting places) dari yang diduga sebagai nyamuk vektor filariasis. Penangkapan nyamuk dilakukan di sekitar rumah penderita filariasis. Pengukuran koordinat kasus filariais dilakukan dengan pesawat Geographic Positioning System (GPS). Pemeriksaan darah jadi jari dilakukan di Laboratorium Kesehatan Daerah (LABKESDA) Propinsi Jawa Tengah. Sedang bedah nyamuk dilakukan di Balai Penelitian Vektor Penyakit Banjarnegara. Analisis data dlakukan secara deskriptif, analisis spasial dilakukan dengan software ArcGis 9.3.Hasil: Penelitian ini tidak menemukan penderita baru filarisis (mf rate=0%). Sebanyak 129 ekor nyamuk telah dilakukan pembedahan dengan hasil semuanya negatip cacing filaria. Hasil identifikasi nyamuk menemukan spesies nyamuk Culex quinquefasciatus merupakan nyamuk yang dominan (72,86%) di lokasi penelitian.Terdapat breeding places (40%) berupa genangan air terbuka (SPAL) dan resting places (83,3%) berupa semak-semak di sekitar rumah penderita. Analisis spasial menunjukkan bahwa kasus filariasi hampir menyebar di seluruh wilayah Kaputaen Demak. Daerah cekungan aliran air nampaknya merupakan kondisi dimana kasus filariasis banyak terjadi. Simpulan: Kasus filariasis hampir menyebar di seluruh wilayah Kabupaten Demak dengan konsentrasi lebih banyak pada daerah cekungan aliran air Semarang-Demak. ABSTRACTTitle: Spatial Analysis of Lymphatic Filariasis in Demak Dictric, Central JavaBackground: Lymphatic filariasis (LF) is one of vector related diseaseswhich less attention from goverment, It was classified as Neglected Tropical Diseases (NTDs). Demak District is one of area in Central Jawa which was endemic of LF (mf rate>1%). It may be related to the physical and biologycal environment condition which have important role in the spreading of LF. This research aimed to identify new cases, find mosquitoe vector , and asses the condition of physical and biologycal environment related to the distribuion of LF cases in Demak District. Methods: It was an observational research using cross-sectional design. As more as 30 LF cases defined as index case and then 140 persons living around index case were selected for blood testing of microfilaria. Observation was conducted to assess the presence of breeding and resting places for mosquitoes development. Mosquito collection was conducted around the houses the LF cases early in the morning. Site of LF cases were measured using Geographic Positioning System (GPS) Apparatus. Blood test for identifying microfilaria was performed at Province Health Labotatory of Centra Java. Mosquotoes dissection was performed at Research Institule of  Disease Vector Banjarnegara. Data would be analyzed descriptively and spatial analysis was performed using ArcGis 9.3.Results: This research did’t find new cases of filariasis (mf rate=0%). As more as 129 mosquitoes had been dissected and all of them indicated negative of filarial worm. This research showed that Culex quinquefasciatus as dominant mosquitoe species with the proportion of 72,86%. Water puddle (40%) and small three (83,3%) were found as a good habitats located around the house of filariasis cases. Spatial analysis indicated that filariasis cases spread in all over area of Demak Distirct, and It concentated in the area of undergroud water flow of Semarang-DemakConclusion: Lymphatif Filariasis cases were nearly distributed all over area of Demak Distict and It was concentrated in area with underground water flow Semarang-Demak.

scholarly journals Transcriptomic analysis of insecticide resistance in the lymphatic filariasis vector Culex quinquefasciatus

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Walter Fabricio Silva Martins ◽  
Craig Stephen Wilding ◽  
Alison Taylor Isaacs ◽  
Emily Joy Rippon ◽  
Karine Megy ◽  
...  
Keyword(s):  
Insecticide Resistance ◽  
Lymphatic Filariasis ◽  
Culex Quinquefasciatus ◽  
Transcriptomic Analysis ◽  
Filariasis Vector

scholarly journals Comparison of Biological Attributes of Culex quinquefasciatus (Diptera: Culicidae) Populations from India

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Mangesh D. Gokhale ◽  
Mandar S. Paingankar ◽  
Sachin D. Dhaigude
Keyword(s):  
Culex Quinquefasciatus ◽  
Control Strategies ◽  
Principal Component ◽  
Biological Data ◽  
Morphological Data ◽  
Insecticide Susceptibility ◽  
Baseline Information ◽  
Biological Attributes ◽  
Contrasting Habitats ◽  
Two Populations

Understanding the population dynamics of mosquito populations through life table analysis and insecticide susceptibility is important to assess the likely impact of vector control strategies as well as to aid the design of novel interventions. Variation in the life tables and other biological data was compared for two populations of Culex quinquefasciatus Say 1823 from geographically isolated regions, Gorakhpur and Pune from India. Under a standardized rearing regime and constant laboratory conditions, mosquitoes were reared and biological attributes of these populations were compared. Development and survival of immature and adult stages of Culex quinquefasciatus were found significantly different in Gorakhpur and Pune populations. Principal component analysis of morphological data revealed that the two populations form significantly different clusters which can be differentiated from each other based on siphon, saddle, anal gills, and pecten teeth related variables. Insecticide susceptibility results suggest that the larvae from both areas were more susceptible to deltamethrin as compared to DDT and malathion. The current study provides baseline information on survivorship, morphological variation and insecticide susceptibility of Culex quinquefasciatus. The results obtained in this study suggest that different geographical areas with contrasting habitats have significant influence on survival and reproductive strategies of Culex quinquefasciatus.

scholarly journals Tabel Hidup Nyamuk Vektor Filariasis Limfatik Culex quinquefasciatus (Diptera: Culicidae) di Laboratorium

2019 ◽  
Vol 18 (2) ◽  
pp. 73
Author(s):  
Tri Ramadhani ◽  
Vina Yuliani ◽  
Upik Kesumawati Hadi ◽  
Susi Soviana ◽  
Zubaidah Irawati
Keyword(s):  
Lymphatic Filariasis ◽  
Culex Quinquefasciatus ◽  
Generation Time ◽  
Control Program ◽  
Wuchereria Bancrofti ◽  
Reproductive Rate ◽  
Reproduction Rate ◽  
Net Reproductive Rate ◽  
Vector Control Program ◽  
Vector Borne

Latar belakang: Kelangsungan hidup nyamuk merupakan aspek yang penting dalam penularan penyakit tular vektor. Culex quinquefasciatus merupakan vektor filariasis limfatik yang disebabkan oleh wuchereria bancrofti. Pengetahuan kehidupan nyamuk berperan penting dalam keberhasilan program pengendalian vektor. Tujuan penelitian ini mendiskripsikan tabel hidup nyamuk Cx. quinquefasciatus di laboratorium.Metode: Penelitian diawali dengan koleksi larva Cx. quinquefasciatus di  Kota Pekalongan, kemudian diidentifikasi dan kolonisasi dalam kondisi laboratorium. Parameter yang diukur meliputi masa inkubasi, ekslosi, eksdisis, ketahanan hidup, laju reproduksi, waktu generasi dan laju pertumbuhan intrinsik.  Hasil: Cx. quinquefasciatus mempunyai siklus hidup 12.5 hari. Umur telur, larva, dan pupa masing-masing adalah 2.07; 10.2; dan  2.25 hari. Nyamuk jantan mempunyai ketahanan hidup yang lebih pendek dibandingkan betina. Laju reproduksi  bersih (Ro) sebesar 196.75, laju pertumbuhan intrinsik 0.35  dan waktu generasi (T) 14.91 hari.Simpulan: Pertumbuhan populasi Cx. quinquefasciatus  dapat diatur dan dikendalikan oleh kelulusan hidup dan mortalitas. ABSTRACTTitle: The Live Table of Vector Lymphatic Filariasis Culex quinquefasciatus (Diptera: Culicidae) in the LaboratoryBackground: The survival of a mosquito is an important aspect in the transmission of vector borne disease. Culex quinquefasciatus, which is a vector of lymphatic filariasis caused by wuchereria bancrofti. The knowledge of mosquito life is important in providing the foundation for the success of the vector control program. The research  aim to describe the life table Cx. quinquefasciatus in the laboratoryMethods:. This study was originated from the collecting larve  of Cx. quinquefasciatus from Pekalongan City, which were then identified and colonized under laboratory conditions. Parameters measured include the incubation period, ekslosi, eksdisis, survival rate, reproduction rate, and generation time.Results:The results showed that Cx. quinquefasciatus has a 12.5 day life cycle. Egg, larva, and pupa respectively were 2.07; 10.2; and 2.25 days. The males have a shorter survival period compared to  the  females. The net  reproductive  rate  (Ro)  was  196.75;  the  intrinsic  growth  rate  (rm)  was  0.35  and  the average generation time (T) was 14.91 days.Conclusion : The population growth of Culex quinquefasciatus can be regulated and controlled by life graduation and mortality 

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