scholarly journals A New, Cheap, Easy to Use, Foldable and Portable Autocidal Ovitrap for Aedes Control at Community Level

2021 ◽  
pp. 9-28
Author(s):  
G. Carnevale ◽  
P. Carnevale
Keyword(s):  
Aedes Aegypti ◽  
Vector Control ◽  
Aedes Albopictus ◽  
Vaccination Campaign ◽  
Specific Treatment ◽  
Hemorrhagic Fever ◽  
Community Level ◽  
It Use ◽  
Operational Issues ◽  
Single Larva

Except for Yellow Fever there is still no operational vaccine, the Dengue vaccine (CYD-TDV, sold under the brand name Dengvaxia©) raised several issues and vaccination campaign were stopped. On the other hand there is still no specific treatment for the main arbovirus transmitted by Aedes aegypti and Aedes albopictus such as dengue, Chikungunya, Zika and recent outbreaks occurred all over the World. For WHO “vector control is the key strategy to control or prevent the transmission of dengue (and other arbovirus) but clearly there is a need for improved new vector control approaches. Only another one vaccine is available against arbovirus is against Japanese Encephalitis transmitted by Culex tritaeniorhynchus. In line with this recommended approaches of new tools to be used at community level we successfully developed and implemented in Angola a “Very Simple Ovitrap Model” which actually “collected” eggs of Aedes aegypti warning for risk of arbovirus outbreaks, which, unfortunately, occurred few years later. These ovitraps were transformed as a tool for vector control in adding few drops of Bacillus thuringiensis (Bt) in the water and several hundred of tests showed that not a single larva of Aedes aegypti was ever found in these “Bt fitted simple ovitrap”. To solve some operational issues (transport) we tested in Bali during 3 years several size and color of foldable container prepared as ovitraps and put in a garden among grass, banana trees etc, we thus collected eggs of Aedes albopictus, important vector of dengue and dengue hemorrhagic fever (DHF), a serious threat in Asia, and preliminary tests (unpub.) showed some resistance to insecticide increasing the need for control. According to these trials, made in complete field conditions, we proposed a new foldable model of ovitrap as a vector control tool presented as a kit to be used at community level with a 3 steps action: open it/fill it/use it.

scholarly journals Semi Field Trial Competitive Power Married Made Sterile Aedes Albopictus as Method of Vector Control: A Current Vector Controlling Method

2019 ◽  
Vol 3 (1) ◽  
pp. 172-180
Author(s):  
Ahmad Rosyadi ◽  
Ahmad Sehabudin ◽  
Ariel Rifayat
Keyword(s):  
Aedes Aegypti ◽  
Vector Control ◽  
Aedes Albopictus ◽  
Case Fatality Rate ◽  
Case Fatality ◽  
Hemorrhagic Fever ◽  
Current Vector ◽  
Disease Vector ◽  
Very High ◽  
A Current

Aedes albopictus is a plant that causes Dengue Hemorrhagic Fever is not as prevalent as Aedes Aegypti is not a disease given by Aedes albopictus mosquito is not much different from Aedes Aegypti mosquito. The Case Fatality Rate (CFR) of Dengue Fever is very high in Indonesia, at 41.4% at the beginning of dengue cases in Indonesia. Innovation continues to create for disease vector control to break the chain of disease. The use of sterile insect techniques is a useful thing in the things that need to be socialized in the community.

scholarly journals Proporsi Larva Aedes aegypti dan Aedes albopictus, Hubungannya dengan Kejadian Demam Berdarah Dengue di Daerah Endemik Suburban Kabupaten Sleman, Yogyakarta

2019 ◽  
pp. 163-170
Author(s):  
Bobby Fahmi Muldan Pahlevi ◽  
Tri Wulandari Kesetyaningsih
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Dengue Hemorrhagic Fever ◽  
Urban Areas ◽  
Endemic Area ◽  
Hemorrhagic Fever ◽  
Suburban Area ◽  
Dengue Transmission ◽  
The Relationship

Dengue Hemorrhagic Fever (DHF) is transmitted by Aedes aegypti and Ae. albopictus. Aedes aegypti chooses to live indoors and Ae. albopictus in outdoors. Aedes aegypti has been proven to play a role in dengue transmission in urban areas. It is assumed that suburbs dominated by gardens, so it is possible that Ae. albopictus acts as a vector. The study aimed to analyze the relationship between Ae. albopictus and DHF incidence in suburban area. The study was conducted in Godean, Sleman Regency. 280 ovitrap were placed indoors and outdoors at across seven villages. Each village was represented by one hamlet, so there were 40 ovitrap of each hamlet. The proportion of ovitrap containing Ae. aegypti and Ae. albopictus larvae was calculated. The results showed that Ae. aegypti larvae was more indoors (78.50%) than outdoors (21.45%) in all villages and negatively correlates with DHF (p=0.036; r=-0.776). Aedes albopictus larvae is more commonly found in gardens (80.64%) than in homes (19.36%) and does not correlate with DHF (p = 0.702). It was concluded that in suburban endemic area of ​​Sleman Regency, Ae. aegypti larvae was more indoors and negatively correlated with DHF. Aedes albopictus larva was more in the garden and did not correlate with DHF incidence.

scholarly journals KEPADATAN NYAMUK DEWASA Aedes Sp DI KELURAHAN MALALAYANG I KECAMATAN MALALAYANG MANADO PERIODE JANUARI – PEBRUARI 2010

2013 ◽  
Vol 3 (3) ◽  
Author(s):  
Janno B. B. Bernadus ◽  
Victor D. Pijoh ◽  
Venny Kareth
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Case Fatality Rate ◽  
Case Fatality ◽  
Public Health Problem ◽  
Hemorrhagic Fever ◽  
Adult Mosquito ◽  
Fatality Rate ◽  
North Sulawesi ◽  
Culex Sp

Abstract: Dengue Hemorrhagic Fever (DHF) has become a public health problem in Indonesia because of its high prevalence and ability to spread more widely. In North Sulawesi itself Case Fatality Rate of carrying dengue is increasing from year to year. The local village Malalayang has a high potential for spreading this disease. The result of an  entomology survey on adult mosquitos showed that Aedes sp was found in 40 houses of 80 house samples. From these 40 houses we got 71 mosquito samples. From these 71 samples tested and identified, we found three species: Aedes aegypti (30 samples, 42.25%), Aedes albopictus (22 samples, 30.99%), and Culex sp (19 samples, 26.76%). Mosquito density can be seen from the indices of the resting rates, which were 0.375 for Aedes aegypti, 0.275 for Aedes albopictus, and 0.65 for Aedes sp. Key words: density, adult mosquito, Aedes sp., resting rate.   Abstrak: Demam Berdarah Dengue (DBD) merupakan penyakit yang menjadi masalah kesehatan masyarakat di Indonesia karena prevalensinya yang tinggi dan penyebarannya semakin luas. Di Sulawesi Utara, Case Fatality Rate penyakit DBD tercatat terus meningkat dari tahun ke tahun. Kelurahan Malalayang I merupakan daerah yang potensial sebagai daerah penyebaran DBD. Survei entomologi terhadap nyamuk dewasa Aedes sp pada 80 rumah  memperlihatkan bahwa 40 diantaranya terdapat 71 sampel nyamuk. Setelah diperiksa dan diidentifikasi ternyata ditemukan tiga spesies yaitu Aedes aegypti 30 sampel (42,25%), Aedes albopictus 22 sampel (30,99%) dan Culex sp 19 (26,76%). Kepadatan nyamuk  dapat dilihat  dari angka indeks  pada resting rate yaitu Aedes aegypti = 0,375 , Aedes albopictus = 0,275 dan  Aedes sp.= 0,65. Kata kunci:  kepadatan, nyamuk dewasa, Aedes sp., resting rate.

scholarly journals Gambaran indeks Maya pada rumah penderita demam berdarah dengue di Kelurahan Kombos Barat Kecamatan Singkil tahun 2015

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Ivan T. Sigarlaki ◽  
Victor D. Pijoh ◽  
Josef S.B. Tuda
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Dengue Hemorrhagic Fever ◽  
Risk Index ◽  
Public Health Problem ◽  
Hemorrhagic Fever ◽  
Viral Disease ◽  
Environmental Data ◽  
Mosquito Vector ◽  
Short Time

Abstract: Dengue hemorrhagic fever (DHF) is a viral disease that can cause death within a very short time (a few days). The main vector of DHF is Aedes aegypti mosquito, whereas the potential vector is Aedes albopictus. In the context of prevention of DHF, environmental data associated with bionomics mosquito vector of DHF, the Maya Index, are needed. DHF is still a public health problem. And for the case that there is in the city of Manado in 2013, in this case in the district of Singkil, acquired as many as 43 cases of dengue hemorrhagic fever. This study aimed to describe the Maya Index at the houses of dengue hemorrhagic fever patients in the village of West Kombos, Singkil districts. Maya Index is based on hygiene risk index (HRI) and breeding risk index (BRI). This was a descriptive study. Samples were houses of patients with DHF in 2015 from January to December. The results showed that there were four patients during the year 2015. Observation of the four houses and calculation of the data indicated that two houses were in low category of Maya Index, one house in medium category of Maya Index, and one house in high category of Maya Index. Keywords: dengue hemorrhagic fever, Maya index Abstrak: Demam berdarah dengue (DBD) adalah penyakit virus yang berbahaya karena dapat menyebabkan kematian dalam waktu yang sangat singkat (beberapa hari). Vektor utama DBD ialah nyamuk Aedes aegypti, sedangkan vektor potensialnya ialah Aedes albopictus. Dalam konteks penanggulangan DBD, juga diperlukan data lingkungan terkait dengan segi bionomik nyamuk vektor DBD, yaitu Indeks Maya. DBD masih merupakan masalah kesehatan masyarakat di kota Manado. Pada tahun 2013, di Kecamatan Singkil didapatkan sebanyak 43 kasus DBD. Penelitian ini bertujuan untuk mengetahui gambaran Indeks Maya pada rumah penderita DBD di Kelurahan Kombos Barat Kecamatan Singkil. Indeks Maya didasarkan pada hygiene risk index (HRI) dan breeding risk index (BRI). Jenis penelitian ialah deskriptif. Sampel penelitian ialah rumah dari penderita DBD tahun 2015 sejak bulan Januari-Desember. Dari hasil penelitian didapatkan empat penderita sepanjang tahun 2015 dan setelah dilakukan observasi ke rumah penderita dan perhitungan data didapatkan dua rumah masuk pada kategori Indeks Maya rendah, satu rumah masuk pada kategori Indeks Maya sedang, dan satu rumah masuk kategori Indeks Maya tinggi.Kata kunci: demam berdarah dengue, indeks Maya

scholarly journals AKTIVITAS EKSTRAK RIMPANG TEMULAWAK (Curcuma xanthorrhiza Roxb.) SEBAGAI LARVASIDA TERHADAP Aedes aegypti DI KECAMATAN KELAPA LIMA KOTA KUPANG

2020 ◽  
Vol 8 (1) ◽  
pp. 54-68
Author(s):  
Deswandi W. S. Berri ◽  
Julianty Almet ◽  
Diana Agustiani Wuri
Keyword(s):  
Aedes Aegypti ◽  
Vector Control ◽  
Research Method ◽  
Hemorrhagic Fever ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Mosquito Vector ◽  
Curcuma Xanthorrhiza ◽  
Mosquito Vector Control

Dengue hemorrhagic fever (DHF) is a disease that is found in some tropical and subtropical regions. This disease is caused by dengue virus and is transmitted to humans through the bite of the Aedes aegypti mosquito. the solution taken in controlling DHF is to break the life cycle of the Aedes aegypti mosquito. Vector control is generally carried out using synthetic larvicides, namely abate / temefos, but the use of abate can cause residues, environmental pollution, poisoning and resistance of the eradicated vectors so that natural larvasides from plants are needed namely temulawak rhizome (Curcuma xanthorrhiza Roxb.) for vector control. The purpose of this study was to determine whether temulawak rhizome extract was effective or not in killing Aedes aegypti larvae. This research method includes larva collection, identification and maintenance of mosquitoes, determining sample size, making extracts and testing effectiveness. This study used a control and experiment group with 3 repetitions in the minutes to 15, 30, 45, 60 and 1440 (24 Hours). The control group was positive control using abate and negative control using aquades while the eksperiment group used extract of temulawak rhizome (Curcuma xanthorrhiza Roxb.) with concentrations of 0.6%, 0.8%, 1%, 1.2% and 1.5%. The results of this study indicate that the temulawak rhizome extract (Curcuma xanthorrhiza Roxb.) effective as larvicides because at the lowest concentration 0.6% can kill 100% Aedes aegypti larvae.

scholarly journals Insecticide resistance in dengue vectors from hotspots in Selangor, Malaysia

2021 ◽  
Vol 15 (3) ◽  
pp. e0009205
Author(s):  
Rosilawati Rasli ◽  
Yoon Ling Cheong ◽  
M. Khairuddin Che Ibrahim ◽  
Siti Futri Farahininajua Fikri ◽  
Rusydi Najmuddin Norzali ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Insecticide Resistance ◽  
Vector Control ◽  
Aedes Albopictus ◽  
World Health ◽  
Dengue Vector ◽  
Organophosphate Insecticide ◽  
Potential Threat ◽  
Pyrethroid Insecticides ◽  
Dengue Vector Control

Background In Malaysia, dengue remains a top priority disease and usage of insecticides is the main method for dengue vector control. Limited baseline insecticide resistance data in dengue hotspots has prompted us to conduct this study. The present study reports the use of a map on the insecticide susceptibility status of Aedes aegypti and Aedes albopictus to provide a quick visualization and overview of the distribution of insecticide resistance. Method and results The insecticide resistance status of Aedes populations collected from 24 dengue hotspot areas from the period of December 2018 until June 2019 was proactively monitored using the World Health Organization standard protocol for adult and larval susceptibility testing was conducted, together with elucidation of the mechanisms involved in observed resistance. For resistance monitoring, susceptibility to three adulticides (permethrin, deltamethrin, and malathion) was tested, as well as susceptibility to the larvicide, temephos. Data showed significant resistance to both deltamethrin and permethrin (pyrethroid insecticides), and to malathion (organophosphate insecticide) in all sampled Aedes aegypti populations, while variable resistance patterns were found in the sampled Aedes albopictus populations. Temephos resistance was observed when larvae were tested using the diagnostic dosage of 0.012mg/L but not at the operational dosage of 1mg/L for both species. Conclusion The present study highlights evidence of a potential threat to the effectiveness of insecticides currently used in dengue vector control, and the urgent requirement for insecticide resistance management to be integrated into the National Dengue Control Program.

scholarly journals Larvicidal activity of Vietnamese Solanum nigrum on mosquitoes Aedes aegypti and Aedes albopictus (Diptera: Culicidae)

2020 ◽  
Vol 52 (1) ◽  
Author(s):  
T.D.H. Dinh ◽  
Q.T. Le ◽  
T.D. Nguyen ◽  
T.Q.T. Nguyen ◽  
A.S. Ho ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Larvicidal Activity ◽  
Aedes Albopictus ◽  
Plant Extract ◽  
Ethanolic Extract ◽  
Laboratory Strain ◽  
Hemorrhagic Fever ◽  
Solanum Nigrum ◽  
Hot Water ◽  
Control Effort

A Vietnamese domestic plant namely Solanum nigrum (S. nigrum) was subjected to test for larvicidal activity on two majors Dengue hemorrhagic fever (DHF) vectors Aedes aegypti (Ae. aegypti) and Aedes albopictus (Ae. albopictus). The plant was processed to get infusions in hot water or extracted in ethanol. Laboratory and field larval strains of two Aedes species were exposed to the infusions and extract at increasing concentrations for one hour and followed-up intensively for up to 72 hours. The obtained results of bioassay showed larvicidal effects of extract on all mosquito strains. The effects on laboratory strain of Ae. aegypti larvae were correlated with infusions and extract concentrations. Chopped plant infusions in hot water indicated mortality up to 77.3% of larvae. Ground plant infusions killed all of exposed larvae at day 3 postexposure. Median lethal concentrations (LC50,s) of chopped and ground plant infusions were 10.25 and 7.54%, respectively. Ethanolic extract had very strong effect on experimental subjects. Within 72 hours, 100% of laboratory strain of Ae. aegypti larvae died after exposure to extract at 100 parts per million (ppm) or higher concentrations. Ethanolic plant extract showed similar larvicidal effect on field strains of Ae. aegypti and Ae. albopictus. The percentage mortality of field strains larvae reached 100% after exposure to 100 ppm of plant extract. At concentrations of 1000 ppm, 100% of exposed larvae died with 8 hours. LC50 on tested larvae was 25.07-33.60 ppm. Strong larvicidal activity of S. nigrum suggests the possible application in DHF vector control effort.

scholarly journals Potensi Transmisi Demam Berdarah Dengue Berdasarkan Indeks Entomologi dan Maya Indeks di Tiga Kelurahan Kecamatan Sukajadi Kota Pekanbaru

2020 ◽  
Vol 19 (2) ◽  
pp. 111-118
Author(s):  
Esy Maryanti ◽  
Ismawati Ismawati ◽  
Unique Prissilia ◽  
Ardini Yovy Puteri
Keyword(s):  
Aedes Aegypti ◽  
Dengue Virus ◽  
Dengue Hemorrhagic Fever ◽  
Health Problem ◽  
Risk Index ◽  
Geographical Location ◽  
Hemorrhagic Fever ◽  
Cross Sectional ◽  
Transmission Potential ◽  
Single Larva

Latar belakang: Demam berdarah dengue (DBD) merupakan penyakit yang masih menjadi masalah kesehatan di Indonesia yang disebabkan oleh virus dengue dan ditularkan melalui nyamuk Aedes aegypti. Kejadian DBD selalu ada setiap tahun di Pekanbaru dari tahun 2014-2016 terjadi peningkatan kasus, 2017-2018 kasus DBD mulai menurun tetapi diawal tahun 2019 kasus DBD kembali terjadi peningkatan dan sudah ada kematian sehingga memerlukan perhatian yang lebih serius untuk meningkatkan kewaspadaan terhadap penyakit tersebut. Tujuan penelitian ini adalah untuk menganalisis potensi transmisi DBD berdasarkan indeks entomologi dan maya indeks di tiga kelurahan Kecamatan Sukajadi yang merupakan daerah endemis DBD. Metode: Penelitian survei larva Aedes aegypti dengan pendekatan cross sectional yang dilakukan pada bulan Juli 2019 di tiga kelurahan yaitu Kelurahan Kampung Tengah, Kampung Melayu, Kedungsari Kecamatan Sukajadi. Identifikasi larva menggunakan metode single larva method. Hasil: Sebanyak 181 rumah yang disurvey, didapatkan 822 kontainer yang terdiri dari 683 controllable sites dan 139 disposable sites. Angka bebas jentik sebesar 89,5%, container index 3,4%, house index 10,5% dan Breteau index 21%. Status Maya indeks (MI) yang diukur berdasarkan breeding risk index dan hygiene risk index didapatkan sebanyak 55,80% rumah termasuk dalam status sedang dan 15,47% termasuk ke dalam status MI tinggi. Sebaran keberadaan larva Aedes aegypti berdasarkan letak geografis cukup merata di Kelurahan Kampung Melayu dan Kampung Tengah.Simpulan: Berdasarkan hasil indeks entomologi tersebut didapatkan density figure dalam kategori sedang yang artinya wilayah ini mempunyai potensi transmisi sedang untuk kejadian penyakit DBD. ABSTRACT  Title : Transmission Potential of Dengue hemorrhagic fever based on entomology index and maya index in three sub-districts, Sukajadi District, Pekanbaru CityBackground: Dengue hemorrhagic fever (DHF) is a disease still a health problem in Indonesia caused by the dengue virus that is transmitted through Aedes aegypti. The incidence of DHF is always there every year in Pekanbaru form 2014-2016 there was an increase in cases, from 2017-2018 dengue cases began to decline, but in early 2019 dengue cases increased again and there have been deaths so it requires more serious attention.. The objectives of this study was to analyze the potential transmission of DHF based on the entomology index and maya index in three sub-districts of Sukajadi district.Method: The research was a survey of larva Ae.aegypti in July 2019 from 181 houses in the three village of Sukajadi District. Larvae identification using the single larvae method.Result: A total of 181 houses surveyed obtained 822 containers consisting of 683 controllable sites and 139 disposable sites. The larvae free rates is 89.5%, container index 3.4%, house index 10,5% and Breteau index 21%. Maya index is measures based on breeding risk index and hygiene risk index shows that there are 55.8% of houses in the area are classified as moderate and 15.47% are included in high. The distribution of the existence of Ae.aegypti larvae based on the geographical location is quite evenly distributed in Kampung Melayu and Kampung Tengah.Conclusion: It is found that density figure is in the medium, which means that region has moderate transmission potential for the incidence of DHF

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