scholarly journals Faktor Lingkungan dan Praktik Masyarakat Berkaitan Dengan Kejadian Filariasis di Kabupaten Semarang

2019 ◽  
Vol 18 (1) ◽  
pp. 8
Author(s):  
Robo Rahanyamtel ◽  
Nurjazuli Nurjazuli ◽  
Sulistiyani Sulistiyani
Keyword(s):  
Aedes Aegypti ◽  
Culex Quinquefasciatus ◽  
Health Centers ◽  
Observational Research ◽  
Purposive Sampling ◽  
Entomological Survey ◽  
Central Java ◽  
Survey Results ◽  
Status Data ◽  
Breeding Place

Latar belakang: Perkembangan suatu penyakit infeksi di suatu daerah tergantung pada terdapatnya manusia yang rentan dan kondisi lingkungan yang sesuai bagi kehidupan mikroorganisme penyebab penyakit, salah satunya adalah penyakit filariasis (kaki gajah). Penyakit filariasis disebabkan oleh infeksi cacing filaria yang ditularkan oleh gigitan nyamuk. Kementrian Kesehatan menetapkan Kabupaten Semarang sebagai daerah endemis filariasis tahun 2015 menyusul beberapa daerah di Provinsi Jawa Tengah yang lebih awal sudah  menjadi endemis.Metode : Penelitian ini adalah penelitian observasional deskriptif dengan sampel sebanyak 45 orang yang dipilih dengan metode purposive sampling dan tersebar dalam wilayah kerja 6 puskesmas di Kabupaten Semarang. Variabel yang diteliti meliputi faktor lingkungan dan praktik masyarakat. Analisis data dilakukan secara deskriptif.Hasil : Nyamuk hasil survei entomologi  yang berhasil diidentifikasi terdiri dari  spesies Culex quinquefasciatus 83,5% dan Aedes aegypti 16,5% serta hasil bedah tidak ditemukan nyamuk yang positif mengandung larva mikrofilaria. Responden yang ditemukan breeding place di sekitar rumahnya sebanyak 64,4% dan 35, % tidak ditemukan breeding place. responden yang ditemukan resting place di sekitar rumahnya sebanyak 60 % dan 40% tidak ditemukan resting place. sebanyak 26,7% responden melakukan praktik keluar rumah pada malam hari dan 73,3% tidak melakukan praktik keluar rumah.Simpulan : Hasil survey entomologi didominasi nyamuk spesies Culex quinquefasciatus dan tidak ditemukan larva filaria saat pembedahan nyamuk, sekitar rumah responden masih banyak ditemukan breeding place dan resting place. Sebagian besar responden tidak  keluar pada malam hari. ABSTRACT Title: Environmental and Practice Factor  Related to Filariasis Incidence in Semarang RegencyBackground: The spreading of infectious disease in an area depends on the presence of susceptible humans and suitable environmental conditions for  the microorganisms that cause disease to live, one of which is filariasis (elephantiasis). Filariasis is caused by infectious filarial worm that are transmitted through mosquitos. The Ministry of Health (MoH) stipulated Semarang Regency as one of filariasis endemic areas in 2015, following other several areas in Central Java Province that have become endemic earlier.Methods : This research is a descriptive observational research, with 45 respondents had been observed as a sample. They were selected by purposive sampling method spread in 6 work areas of public health centers (Puskesmas) in Semarang Regency. Finger blood examination and mosquitoes dissesction ware conducted to determne mosquitoe species and infected status. Data was analyzed descriptively.Results : An entomological survey identified two species of mosquitos, consisted of 83.5% was Culex quinquefasciatus and 16.5% was Aedes aegypti. Moreover no mosquitoes were found that positively contained microfilariae larvae. Result from the observation showed 64.4% of respondents’ house were detected a breeding place, and 35% were not detected. Respondents’ house that were detected resting place  as much as 60%, and 40% were not. Meanwhile, 26.7% of respondents were practicing outside house at night, and 73.3% were not.Conclusion : The entomological survey results were dominated by mosquitoes from Culex quinquefasciatus species and did not find filaria larvae during mosquito surgery. However, there were still many breeding places and resting places around the respondents’ house. Most of respondents did not leave at night.

scholarly journals Surveilans Aedes aegypti di Daerah Endemis Demam Berdarah Dengue

2014 ◽  
Vol 8 (8) ◽  
pp. 423
Author(s):  
Sunaryo Sunaryo ◽  
Nova Pramestuti
Keyword(s):  
High Risk ◽  
Aedes Aegypti ◽  
Health Problem ◽  
Haemorrhagic Fever ◽  
Cross Sectional ◽  
Breeding Sites ◽  
Central Java ◽  
Mosquito Breeding ◽  
Survey Results ◽  
Cross Sectional Design

Demam Berdarah Dengue (DBD) perlu mendapat perhatian serius karena masih menjadi masalah kesehatan di Indonesia dan di beberapa daerah masih sering terjadi kejadian luar biasa. Di Jawa Tengah, kasus DBD cenderung meningkat setiap tahunnya terutama pada tahun 2012. Penelitian ini bertujuan menganalisis parameter entomologi dan menggambarkan jenis tempat penampungan air. Penelitian dilakukan di Kabupaten Grobogan, Purbalingga, Kendal dan Kota Semarang pada bulan Juni - Oktober 2013 desain potong lintang. Survei jentik dilakukan untuk melihat keberadaan tempat penampungan air pada 100 rumah. Masing-masing kabupaten dipilih tiga lokasi desa endemis DBD. Hasil survei digunakan untuk menghitung nilai parameter entomologi. Hasil penelitian menunjukkan bahwa meningkatnya kasus DBD di empat kabupaten/kota terkait dengan keberadaan vektor A. aegypti. Hal ini dibuktikan dengan masih tingginya persentase jumlah rumah yang ditemukan jentik A. aegypti (House Index > 10%) serta tingginya jumlah kontainer ditemukan jentik A. aegypti pada rumah yang dilakukan survei (Breteau Index). Nilai ovitrap index paling tinggi di Desa Kalikabong Kabupaten Purbalingga sebesar 40%. Proporsi controllable site lebih banyak daripada disposable site, berarti rumah tersebut berisiko tinggi sebagai tempat perkembangbiakan nyamuk.Dengue Haemorrhagic Fever (DHF) needs serious attention because it is still a health problem in Indonesia and in recent area DHF caused outbreak. In Central Java, incidence of DHF high every years, especially in 2012. This study aimed to analyze the parameters of entomology and describe types of containers. The study was conducted in Grobogan, Purbalingga, Kendal District and Semarang City in June _ October 2013 with cross-sectional design. Larvae survey had been done in 100 houses in three villages that endemic DHF at every district/city. The survey results are used to calculate parameter entomology. The results showed that existance of DHF cases in four district/city connected with the population of A. aegypti. This matter proved with high percentage of houses that found A. aegypti (House Index > 10%) and the high of container that containing A. aegypti in every houses (Breteau Index). The high of ovitrap index (OI) was 40% in Kalikabong village, Purbalingga district. The proportion of controllable sites more than disposable sites, meaning the house as the high risk of mosquito breeding sites. 

scholarly journals Nocturnal Activity of Aedes spp. in the Filariasis Endemic Area in Central Java

2021 ◽  
Vol 13 (1) ◽  
pp. 47-54
Author(s):  
Nissa Kusariana ◽  
Praba Ginandjar ◽  
Vivi Septi Ariyani ◽  
Moh Arie Wurjanto
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Endemic Area ◽  
Nocturnal Activity ◽  
Cross Sectional ◽  
Purposive Sampling ◽  
Central Java ◽  
Human Landing

Program eliminasi filariasis belum menunjukkan hasil maksimal di Provinsi Jawa Tengah. Perubahan perilaku vektor nyamuk terutama waktu aktif menghisap darah sangat mempengaruhi penularan penyakit filariasis. Salah satu perubahan perilaku vektor tersebut adalah aktivitas nyamuk Aedes spp. yang aktif di pagi hari menjadi aktif di malam hari. Tujuan penelitian ini adalah untuk mendeskripsikan aktivitas nokturnal nyamuk Aedes spp. di daerah endemis filariasis di Jawa Tengah. Penelitian ini merupakan penelitian observasional dengan desain cross-sectional yang dilakukan di dua desa endemis filariasis yaitu Desa Tegal Dowo, Kecamatan Tirto, Kabupaten Pekalongan dan Desa Ujung-Ujung, Kecamatan Pabelan, Kabupaten Semarang. Penangkapan nyamuk dilakukan selama 2 malam di rumah penderita filariasis atau rumah di sekitar rumah kasus (Jarak ± 200 meter) dengan menggunakan teknik purposive sampling. Penangkapan nyamuk berlangsung pada pukul 18.00 - 24.00 WIB dengan jumlah penangkap nyamuk 3 orang di dalam dan 3 orang di luar rumah. Pengumpulan nyamuk dilakukan dengan metode Human Landing Collection (HLC) dan resting collection. Hasil penelitian menunjukkan peningkatan aktivitas nokturnal Aedes aegypti dan Aedes albopictus di daerah endemis filariasis di Jawa Tengah. Total nyamuk Aedes spp. yang ditemukan yaitu sebanyak 124 nyamuk, dengan 121 Ae. aegypti ditemukan di dalam rumah dan 2 nyamuk diluar rumah. Di dua wilayah penelitian ditemukan waktu aktif Ae. aegypti berada pada pukul 18.00-19.00 WIB. Hasil penelitian ini menunjukkan adanya aktivitas nokturnal dari Aedes spp. di wilayah endemis Filariasis di Provinsi Jawa Tengah

scholarly journals Temporal and Spatial Blood Feeding Patterns of Urban Mosquitoes in the San Juan Metropolitan Area, Puerto Rico

Insects ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 129
Author(s):  
Matthew W. Hopken ◽  
Limarie J. Reyes-Torres ◽  
Nicole Scavo ◽  
Antoinette J. Piaggio ◽  
Zaid Abdo ◽  
...  
Keyword(s):  
Puerto Rico ◽  
Aedes Aegypti ◽  
Metropolitan Area ◽  
Culex Quinquefasciatus ◽  
Urban Ecosystems ◽  
Life Cycles ◽  
Pathogen Transmission ◽  
San Juan ◽  
Vertebrate Species ◽  
Blood Meals

Urban ecosystems are a patchwork of habitats that host a broad diversity of animal species. Insects comprise a large portion of urban biodiversity which includes many pest species, including those that transmit pathogens. Mosquitoes (Diptera: Culicidae) inhabit urban environments and rely on sympatric vertebrate species to complete their life cycles, and in this process transmit pathogens to animals and humans. Given that mosquitoes feed upon vertebrates, they can also act as efficient samplers that facilitate detection of vertebrate species that utilize urban ecosystems. In this study, we analyzed DNA extracted from mosquito blood meals collected temporally in multiple neighborhoods of the San Juan Metropolitan Area, Puerto Rico to evaluate the presence of vertebrate fauna. DNA was collected from 604 individual mosquitoes that represented two common urban species, Culex quinquefasciatus (n = 586) and Aedes aegypti (n = 18). Culex quinquefasciatus fed on 17 avian taxa (81.2% of blood meals), seven mammalian taxa (17.9%), and one reptilian taxon (0.85%). Domestic chickens dominated these blood meals both temporally and spatially, and no statistically significant shift from birds to mammals was detected. Aedes aegypti blood meals were from a less diverse group, with two avian taxa (11.1%) and three mammalian taxa (88.9%) identified. The blood meals we identified provided a snapshot of the vertebrate community in the San Juan Metropolitan Area and have potential implications for vector-borne pathogen transmission.

scholarly journals Ligusticum sinense Nanoemulsion Gel as Potential Repellent against Aedes aegypti, Anopheles minimus, and Culex quinquefasciatus (Diptera: Culicidae)

Insects ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 596
Author(s):  
Anuluck Junkum ◽  
Wanchai Maleewong ◽  
Atiporn Saeung ◽  
Danita Champakaew ◽  
Arpaporn Chansang ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Culex Quinquefasciatus ◽  
Disease Transmission ◽  
Skin Irritation ◽  
Mosquito Vectors ◽  
Plant Family ◽  
Anopheles Minimus ◽  
Human Volunteers ◽  
Nanoemulsion Gel ◽  
Fresh Preparation

Ligusticum sinense Oliv. cv. is a species of Umbelliferae (Apiaceae), a large plant family in the order Apiales. In this study, L. sinense hexane extract nanoemulsion gel (LHE-NEG) was investigated for mosquito repellency and compared to the standard chemical, N,N-diethyl-3-methylbenzamide (DEET), with the goal of developing a natural alternative to synthetic repellents in protecting against mosquito vectors. The results demonstrated that LHE-NEG afforded remarkable repellency against Aedes aegypti, Anopheles minimus, and Culex quinquefasciatus, with median protection times (MPTs) of 5.5 (4.5–6.0), 11.5 (8.5–12.5), and 11.25 (8.5–12.5) h, respectively, which was comparable to those of DEET-nanoemulsion gel (DEET-NEG: 8.5 (7.0–9.0), 12.0 (10.0–12.5), and 12.5 (10.0–13.5) h, respectively). Evaluation of skin irritation in 30 human volunteers revealed no potential irritant from LHE-NEG. The physical and biological stability of LHE-NEG were determined after being kept under heating/cooling cycle conditions. The stored samples of LHE-NEG exhibited some changes in appearance and differing degrees of repellency between those kept for 3 and 6 heating/cooling cycles, thus providing slightly shorter MPTs of 4.25 (4.0–4.5) and 3.25 (2.5–3.5) h, respectively, when compared to those of 5.0 (4.5–6.0) h in fresh preparation. These findings encourage commercially developed LHE-based products as an alternative to conventional synthetic repellents in preventing mosquito bites and helping to interrupt mosquito-borne disease transmission.

scholarly journals Behavioural response of mosquito vectors Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus to synthetic pyrethroid and organophosphorus-based slow-release insecticidal paint

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Sunil Dhiman ◽  
Kavita Yadav ◽  
B. N. Acharya ◽  
Raj Kumar Ahirwar ◽  
D. Sukumaran
Keyword(s):  
Aedes Aegypti ◽  
Culex Quinquefasciatus ◽  
Anopheles Stephensi ◽  
Slow Release ◽  
Disease Risk ◽  
Mosquito Species ◽  
Escape Time ◽  
Behavioural Avoidance ◽  
Vector Mosquito ◽  
Contact Exposure

Abstract Background The direct toxicological impact of insecticides on vector mosquitoes has been well emphasized; however, behavioural responses such as excito-repellency and physical avoidance as a result of insecticide exposure have not been much studied. We have demonstrated the excito-repellency and behavioural avoidance in certain vector mosquito species on exposure to a slow-release insecticidal paint (SRIP) formulation in addition to direct toxicity. Methods A SRIP formulation developed by the Defence Research and Development Establishment, Gwalior, contains chlorpyriphos, deltamethrin and pyriproxyfen as active insecticides. Anopheles stephensi, Culex quinquefasciatus and Aedes aegypti mosquitoes were used to study the excito-repellency response of the formulation. The experiments were performed in a specially designed dual-choice exposure and escape chamber made of transparent polymethyl methacrylate. For the experiments, the SRIP formulation was applied undiluted at a rate of 8 m2 per kg on 15 cm2 metallic surfaces. Mosquitoes were introduced into the exposure chamber, and observations of the movement of mosquitoes into the escape chamber through the exit portal were taken at 1-min intervals for up to 30 min. Results The evaluated formulation displayed strong excito-repellency against all three tested vector mosquito species. Results showed that the ET50 (escape time 50%) for Ae. aegypti, An. stephensi and Cx. quinquefasciatus was 20.9 min, 14.5 min and 17.9 min for contact exposure (CE) respectively. Altogether in CE, the escape rates were stronger in An. stephensi mosquitoes at different time intervals compared to Ae. aegypti and Cx. quinquefasciatus mosquitoes. The probit analysis revealed that the determined ET did not deviate from linearity for both non-contact exposure (NCE) and placebo exposure (PE) (χ2 ≤ 7.9; p = 1.0) for Ae. aegypti mosquitoes and for NCE (χ2 = 8.3; p = 1.0) and PE (χ2 = 1.7; p = 1.0) treatments in Cx. quinquefasciatus. Mortality (24 h) was found to be statistically higher (F = 6.4; p = 0.02) in An. stephensi for CE but did not vary for NCE (p ≥ 0.3) and PE (p = 0.6) treatments among the tested mosquito species. Survival probability response suggested that all the three tested species displayed similar survival responses for similar exposures (χ2 ≤ 2.3; p ≥ 0.1). Conclusion The study demonstrates the toxicity and strong behavioural avoidance in known vector mosquito species on exposure to an insecticide-based paint formulation. The combination of insecticides in the present formulation will broaden the overall impact spectrum for protecting users from mosquito bites. The efficacy data generated in the study provide crucial information on the effectiveness of the tested formulation and could be useful in reducing the transmission intensity and disease risk in endemic countries.

Larvicidal and ovicidal activities of phenyl acetic acid isolated from Streptomyces collinus against Culex quinquefasciatus Say and Aedes aegypti L. (Diptera: Culicidae)

2021 ◽  
pp. 108120
Author(s):  
Appadurai Daniel Reegan ◽  
Pachaiyappan Saravana Kumar ◽  
Antony Cruz Asharaja ◽  
Chitra Devi ◽  
Sithi Jameela ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Aedes Aegypti ◽  
Culex Quinquefasciatus ◽  
Phenyl Acetic Acid ◽  
Streptomyces Collinus

scholarly journals Registro de Culicidae de importância epidemiológica na área rural de Manaus, Amazonas

2008 ◽  
Vol 41 (6) ◽  
pp. 658-663 ◽  
Author(s):  
Maria das Graças Vale Barbosa ◽  
Nelson Ferreira Fé ◽  
Alexandre Herculano Ribera Marcião ◽  
Ana Paula Thomé da Silva ◽  
Wuelton Marcelo Monteiro ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Culex Quinquefasciatus ◽  
Anopheles Darlingi

A biodiversidade da Região Amazônica inclui diversas espécies de vetores artrópodes em seus diferentes ecótopos, possibilitando o surgimento de doenças como malária, filarioses e arboviroses. De agosto de 2001 a julho de 2002, realizou-se coletas de culicídeos no domicílio, peridomicílio e nas matas da Comunidade São João, área rural de Manaus, Amazonas. Foram capturados 1.240 culicídeos, pertencentes às subfamílias Culicinae (99%) e Anophelinae (1%), somando 50 espécies. O predomínio entre as tribos foi nitidamente de Culicini, com 904 (72,9%) exemplares, destacando-se as espécies Culex usquatus (22,6%) e Culex quinquefasciatus (17,7%). Do total de culicídeos, 1.077 (86,9%) exemplares foram capturados no interior das matas, 101 (8,1%) no peridomicílio e 62 (5%) no intradomicílio. O ecótopo com maior diversidade de espécies foi a mata. Assinalou-se a presença de Anopheles darlingi, Anopheles triannulatus, Aedes aegypti, Haemagogus janthinomys e outros vetores comprovados ou potenciais.

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