20 results on '"Vatandoost, Hassan"'
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2. Astrodaucus persicus as a new source of bioinsectisides against malaria vector, Anopheles stephensi
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Goodarzi, Saied, Vatandoost, Hassan, Abai, Mohammad Reza, Tavakoli, Saeed, Hatamian, Amir, Ajani, Yousef, Hadjiakhoondi, Abbas, Yassa, Narguess, and Tofighi, Zahra
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- 2017
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3. Environmental characteristics of anopheline mosquito larval habitats in a malaria endemic area in Iran
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Soleimani-Ahmadi, Moussa, Vatandoost, Hassan, Hanafi-Bojd, Ahmad-Ali, Zare, Mehdi, Safari, Reza, Mojahedi, Abdolrasul, and Poorahmad-Garbandi, Fatemeh
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- 2013
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4. Indication of pyrethroid resistance in the main malaria vector, Anopheles stephensi from Iran
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Vatandoost, Hassan and Hanafi-Bojd, Ahmad Ali
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- 2012
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5. Irritability of malaria vector, Anopheles sacharovi to different insecticides in a malaria–prone area
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Vatandoost, Hassan and Abai, Mohammad Reza
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- 2012
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6. The impact of climatic variables on the population dynamics of the main malaria vector, Anopheles stephensi Liston (Diptera: Culicidae), in southern Iran
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Hanafi-Bojd, AhmadAli, primary, Abbasi, Madineh, additional, Rahimi Foroushani, Abbas, additional, Jafari-Koshki, Tohid, additional, Pakdad, Kamran, additional, and Vatandoost, Hassan, additional
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- 2020
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7. Resistance status of main malaria vector, Anopheles stephensi Liston (Diptera: Culicidae) to insecticides in a malaria Endemic Area, Southern Iran
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Hanafi-Bojd, AhmadAli, primary, Abbasi, Madineh, additional, Yaghoobi-Ershadi, MohammadReza, additional, Vatandoost, Hassan, additional, Oshaghi, MohammadAli, additional, Hazratian, Teimour, additional, Sedaghat, MohammadMehdi, additional, Fekri, Sajjad, additional, Safari, Reza, additional, Mojahedi, AbdolRasoul, additional, and Salari, Yousef, additional
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- 2019
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8. The impact of climatic variables on the population dynamics of the main malaria vector, Anopheles stephensi Liston (Diptera: Culicidae), in southern Iran.
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Abbasi, Madineh, Rahimi Foroushani, Abbas, Jafari-Koshki, Tohid, Pakdad, Kamran, Vatandoost, Hassan, and Hanafi-Bojd, Ahmad
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Objective: To determine the significance of temperature, rainfall and humidity in the seasonal abundance of Anopheles stephensi in southern Iran. Methods: Data on the monthly abundance of Anopheles stephensi larvae and adults were gathered from earlier studies conducted between 2002 and 2019 in malaria prone areas of southeastern Iran. Climatic data for the studied counties were obtained from climatology stations. Generalized estimating equations method was used for cluster correlation of data for each study site in different years. Results: A significant relationship was found between monthly density of adult and larvae of Anopheles stephensi and precipitation, max temperature and mean temperature, both with simple and multiple generalized estimating equations analysis (P<0.05). But when analysis was done with one month lag, only relationship between monthly density of adults and larvae of Anopheles stephensi and max temperature was significant (P<0.05). Conclusions: This study provides a basis for developing multivariate time series models, which can be used to develop improved appropriate epidemic prediction systems for these areas. Long-term entomological study in the studied sites by expert teams is recommended to compare the abundance of malaria vectors in the different areas and their association with climatic variables. [ABSTRACT FROM AUTHOR]
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- 2020
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9. Bioassay evaluation on the efficacy of α–cypermethrin impregnated into long lasting insecticide treated nets using Anopheles stephensi
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Mamivand Poor Hossein, Abai Mohamad Reza, Raeisi Ahmad, Vatandoost Hassan, Nikpoor Fatemeh, and Shayeghi Mansoreh
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Long lasting ,Insecticides ,Mosquito Control ,Guidelines as Topic ,Iran ,Toxicology ,parasitic diseases ,Anopheles ,Pyrethrins ,Bioassay ,Animals ,Humans ,LLITN ,Insecticide-Treated Bednets ,Malaria vector ,Anopheles stephensi ,Insecticide treated nets ,Laundering ,Medicine(all) ,biology ,General Medicine ,Malaria – α-cypermethrin ,biology.organism_classification ,Malaria ,Biological Assay ,Bioassay Evaluation ,α cypermethrin - Abstract
Objective To evaluate the bioefficacy of α-cypermethrin impregnated into long lasting insecticide treated nets (LLITNs-INTERCEPTOR®) against main malaria vector, Anopheles stephensi (An. stephensi). Methods The effectiveness of bed net impregnated with α-cypermethrin (INTERCEPTOR®) with washing was evaluated. The washing procedure and bioassay tests were carried out according to the WHO-recommended methods. Malaria vector, An. stephensi was exposed to impregnated bed net for three minutes and then mortality measured after 24 h recovery period. Knockdown was also measured according to the logarithmic times. Results Result of cone bioassay method showed that bioefficacy of α-cypermethrin decreased from 100% in unwashed to 15% in 20 washes. KT 50 was measure as one minute in one wash and increased to 40 min in 20 washes. Discussion Findings of this study provide guideline for malaria vector control authorities and people using pyrethroid-impregnated bed nets.
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- 2012
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10. Phytochemistry and larvicidal activity of Eucalyptus camaldulensis against malaria vector, Anopheles stephensi
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Vatandoost Hassan, Khnavi Mahnaz, Sedaghat Mohamad Medhi, Mohtarami Fatemeh, Sanei Dehkordi Ali Reza, Abai Mohammad Reza, and Hadjiakhoondi Abbas
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Larvicide ,Medicine(all) ,education.field_of_study ,alpha-Pinene ,Phytochemistry ,biology ,Traditional medicine ,Population ,fungi ,General Medicine ,biology.organism_classification ,Essential oil ,law.invention ,chemistry.chemical_compound ,Eucalyptus camaldulensis ,Eucalyptol ,chemistry ,law ,Botany ,Anopheles stephensi ,education - Abstract
ObjectiveTo determine phytochemistry and larvicidal activity of Eucalyptus camaldulensis against Anopheles stephensi.MethodsThe chemical compositions of the leaf essential oils were analyzed using gas chromatography/mass spectrometry (GC/MS). The larvicidal activity of essential oils and extract of leaf were tested against 4th instar larvae of laboratory-reared Anopheles stephensi.ResultsGC/MS analyses identified the presence of 28 compounds corresponding to 99.60% of the total oil. The main constituents in the leaf essential oil were 1,8-cineole (69.46%), γ –Terpinene (15.10%), α –Pinene (5.47%) and Globulol (2%). The leaf extract and volatile oil exerted significant larvicidal activity with LC50 values of 89.85 and 397.75 ppm, respectively. Clear dose-response relationships were established with the highest dose of 320 ppm essential oil extract resulted almost 100% mortality in the population.ConclusionThe larvicidal properties suggest that the essential oil of plant is a potential source of valuable larvicidal compounds against malaria vector and can be used as an alternative to synthetic insecticides.
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- 2010
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11. Malaria stratification in a malarious area, a field exercise
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Kenyi Luka, Vatandoost Hassan, Hanafi Bojd Ahmad Ali, Hassen Abuelgasim, Mashayekhi Minoo, Saffari Mohammad, Akbarzadeh Kamran, Esmailpour Mohammad, Abakar John Baptist, Oshaghi Mohamad Ali, Malik Elfatih M, and Busaq Alikhan
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Medicine(all) ,Kahnuj ,Veterinary medicine ,business.industry ,Stratification (water) ,General Medicine ,Iran ,medicine.disease ,Malaria ,Environmental health ,parasitic diseases ,Medicine ,Stratification ,Malaria control ,business ,Socioeconomic status ,Disease transmission - Abstract
ObjectiveTo conducted a spatial analysis for stratification of priority malaria control areas in Kahnuj County, as part of field exercise.MethodsInformation of Health Centers of Kahnuj County has been used for stratification retrospectively. A knowledge, attitudes and practices (KAP) study was arranged to provide preliminary information about the knowledge, attitude and practice related to malaria in the area.ResultsNumbers of malaria cases has been decreased in year 2008. There were five important vectors of malaria in this region including: Anopheles stephensi (An. stephensi), Anopheles dthali (An. dthali), Anopheles superpictus (An. superpictus), Anophels culicifacies (An. culicifacies), and Anopheles fluviatilis (An. fluviatilis), but majority of malaria cases in this county was related to Plasmodium vivax (P. vivax). Educational levels of community were 38%, 20%, 10% and 32% for illiterate, primary, secondary and university levels, respectively. KAP study revealed that about 37% of people have got malaria at least once and only 27% of people knew that mosquito is the vector of malaria.ConclusionsMalaria in Kahnuj represents a real threat. Transmission occurs in city center. An. stephensi can be suspected for the first peak of malaria cases in late spring in Kahnuj city. An. fluviatilis has a relatively high density in autumn while two malaria cases due to P. falciparum were reported in 2008. Based on KAP study, the knowledge of respondents seems good but the attitude and practice is low. According to the data such as API, main malaria vector, transmission rate, and foreign migrants, the Kahnuj County has been spatially divided into three strata based on various characteristics. The authorities should implement all the interventions based on stratification.
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- 2010
12. Evaluation of bioefficacy of α-cypermethrin in long lasting impregnated net (Interceptor®) using analytical method
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Mamivandpoor Hossein, Abai Mohammad Reza, Abtahi Mohammad, Shayeghi Mansoreh, Yaghoobi-Ershadi Mohammad Reza, Rafie Fatemeh, Nikpour Fatemeh, Raeisi Ahmad, and Vatandoost Hassan
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Medicine(all) ,Long lasting ,Bed nets ,biology ,Malaria vector control ,General Medicine ,biology.organism_classification ,Bioassay test ,Analytical method ,Malaria ,Toxicology ,Bioassay ,Anopheles stephensi ,High performance thin layer chromatography ,Malaria vector ,Interceptor® ,α cypermethrin ,Mathematics - Abstract
Objective: To evaluate relationship between α-cypermethrin residues in Interceptoi4 nets by using HPTLC methods and mortality percentage in standard WHO's method ”cone test” after repeated washings. Methods: Interceptor(superscript ®) containing α-cypermethrin was provided by BASF Company. The washing procedure and bioassay tests were carried out according to the WHO-recommended methods. Malaria vector, An. stephensi was exposed to impregnated bed net for three minutes and then mortality measured after 24 hour recovery period. Chemical analysis was carried out in chemical laboratory by using high performance thin layer chromatography method. Results: Result of cone bioassay method showed that washing reduced the efficacy of Interceptor(superscript ®) bed net from 100% in unwashed nets to 15% at 20 washes. After 20 washes, nets contain (61.2±2.8) mg/m^2 resulting 15% mortality in cone test. Killing activity was reduced when nets were washed. Conclusions: Results will provide an essential clue for monitoring and evaluation of bioefficacy of any long lasting impregnated bed net for quality control. Findings of this study will be useful for WHO, local investigators and people who wish to use pyrethroid-impregnated bed nets for malaria vector control.
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- 2010
13. Wash resistance and bio-efficacy of Olyset ® Plus, a long-lasting insecticide-treated mosquito net with synergist against malaria vector, Anopheles stephensi
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Sheikhi, Soraya, primary, Vatandoost, Hassan, additional, Abai, Mohammad Reza, additional, Shayeghi, Mansoreh, additional, Raeisi, Ahmad, additional, Akbari, Morteza, additional, Nikpoor, Fatemeh, additional, Aghdam, Mohammad Sistanizade, additional, and Bagheri, Akbar, additional
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- 2017
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14. Survey of tick species parasiting domestic ruminants in Ghaemshahr county, Mazandaran province, Iran
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Hosseini Vasoukolaei Nasibeh, Oshaghi Mohammad Ali, Yaghoobi Ershadi Mohammad Reza, Telmadarraiy Zakkyeh, Vatandoost Hassan, and Hosseini Vasoukolaei Morteza
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Medicine(all) ,Veterinary medicine ,biology ,Ghaemshahr ,fungi ,General Medicine ,Iran ,Tick ,bacterial infections and mycoses ,biology.organism_classification ,Ticks ,Geography ,parasitic diseases ,Domestic ruminants ,geographic locations - Abstract
ObjectiveTo determine the tick species parasitizing domestic ruminants in Ghaemshahr county in Mazandaran, a Caspian province in the north of Iran.MethodsAbout 361 sheep, 54 goats and 10 cattle of 18 herds in several villages in Ghaemshahr were inspected for tick infestation. Separated ticks were preserved in 70% alcohol and identified.ResultsAbout 323 ticks (207 female, 116 male) were collected, the occurrence of ticks on sheep, goats and cattle were 28.3%, 22.2% and 20.0% respectively. The mean number of ticks on each animal was low (3-5 ticks per animal). Rhipicephalus sanguineus, Rhipicephalus bursa, Ixodes ricinus, Boophilus annulatus, Haemaphysalis punctata and Haemaphysalis numidiana were the tick species we found. Rhipicephalus sanguineus were the most abundant species in the study area. The largest number of ticks were generally present from April to July, mostly in animal ears and tails. Ixodes, Boophilus and Haemaphysalis occurred in mountainous areas of Ghaemshahr, whereas Rhipicephalus were present in both mountains and plains of the study area.ConclusionsThe result of this study is a survey of tick species from domestic animals in Iran and implication of possible prevention measures for diseases transmitted by ticks.
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- 2010
15. Ectoparasites of lesser mouse eared bat, Myotis blythii from Kermanshah Iran
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Kamali Maryam, Taran Mojtaba, Vatandoost Hassan, Sharifi Mozafar, Telmadarraiy Zakkyeh, and Moradi Alireza
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Medicine(all) ,Veterinary medicine ,Larva ,geography ,geography.geographical_feature_category ,biology ,Myotis blythii ,General Medicine ,Iran ,biology.organism_classification ,Nycteribiidae ,Cave ,Bat flies ,parasitic diseases ,ectoparasites - Abstract
Objective: To identify the ectoparasits of lesser mouse eared bat. Myotis blythii inside the Mahi-Dasth cave in Kermanshah province, Iran. Methods: A total of 30 lasser mouse eared bat (Myotis blythii) in a cave close to Kermanshah city were hunted with special net and were transported to the laboratory. After anesthetizing by chloroform, ectoparasites form these bats were removed and identified Results: The ectoparasites include flies, ticks and mites. The 39 identified flies belonged to two families including Strebilidac (7.7%) and Nycteribiidae (92.3%). A total number of 5 ticks of larval, nymphal and adult stages of lxodes vespertilionis and 18 mites from Spiturnicidae family were identified. Conclusions: The result of this study is a clue for the identification of ectoparasites from bats and implication of possible prevention measures for diseases transmitted by ectoparasites.
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- 2010
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16. Crimean--Congo hemorrhagic fever: a molecular survey on hard ticks (Ixodidae) in Yazd province, Iran
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Chinikar Sadegh, Vatandoost Hassan, Telmadarraiy Zakkyeh, Oshaghi Mohammad Ali, Salim Abadi Yaser, Ghiasi Seyed Mojtaba, and Moradi Maryam
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Crimean–Congo hemorrhagic fever ,Veterinary medicine ,Ixodidae ,Rhipicephalus sanguineus ,Hyalomma marginatum ,Iran ,Hyalomma dromedarii ,Ticks ,Virology ,CCHF ,parasitic diseases ,medicine ,Animals ,Humans ,Medicine(all) ,biology ,Acaricide ,Reverse Transcriptase Polymerase Chain Reaction ,General Medicine ,biology.organism_classification ,medicine.disease ,Cross-Sectional Studies ,Vector (epidemiology) ,Hemorrhagic Fever Virus, Crimean-Congo ,RNA, Viral ,Hemorrhagic Fever, Crimean ,Hyalomma - Abstract
Objective To determine the rate of Crimean-Congo hemorrhagic fever virus (CCHFV) infection in hard ticks (Ixodidae) in Yazd province of Iran. Methods A molecular survey on hard ticks (Ixodidae) was conducted in Yazd province during 2008–2009. A total of 140 hard ticks (three genera and 7 species) were collected from randomly selected villages and were exanimate for presence of CCHFV reverse transcription-polymerase chain reaction (RT-PCR) method. Results CCHFV genome was found in 5.71% of hard ticks. All positive ticks were from Hyalomma genus. Positive ticks including: Hyalomma dromedarii, Hyalomma marginatum, Hyalomma anatolicum, Hyalomma detritum, Hyalomma asiaticum . We were not able to find virus in in Rhipicephalus sanguineus and Dermacentor marginatus . Results exhibited that Hyalomma is the main vector in the study area. Conclusions Due to the presence of virus in 24 provinces' out of 31, we recommend the use of acaricides and repellent to prevent disease transmission among humans. Greta care should be taken by the people who are working in slaughter houses.
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- 2010
17. Demonstration of malaria situation analysis, stratification and planning in Minab District, southern Iran
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Mojahedi AbdulRasool, Daryanavard Ali, Raeisi Ahmad, Yousofzai Abdul Wali, Vatandoost Hassan, Rashidian Arash, Jafari Mehdi, Pakari Abbas, and Hanafi-Bojd Ahmad Ali
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Insecticides ,Southern Iran ,Endemic Diseases ,Population ,Plasmodium vivax ,Plasmodium falciparum ,Prevalence ,Iran ,Insecticide Resistance ,Environmental protection ,Environmental health ,parasitic diseases ,Anopheles ,medicine ,Animals ,Humans ,education ,Anopheles stephensi ,Medicine(all) ,education.field_of_study ,biology ,General Medicine ,biology.organism_classification ,medicine.disease ,Malaria ,Geography ,Population Surveillance ,Workforce ,Health education ,Health Facilities ,Rural area ,Public Health Administration - Abstract
Objective To demonstrate malaria situation analysis, stratification and planning for an endemic area in southern Iran. Methods Data on health system, population, meteorological parameters, malaria cases, anopheline vectors, and control activities during 2005–2007 was obtained from Minab Health Center, Minab Meteorological Station and published documents about malaria elements in the study area. A datasheet was created in excel 2003 for analysis. Results There were 644 health staff working in Minab District including 99 health staff in malaria control program. The health facilities are distributed as follow: 1 hospital with 96 beds, 23 health centers including private centers (10 in Minab city and 13 in rural area of Minab District) and 119 health houses in rural areas of Minab District. A nopheles stephensi was the dominant species in Minab District, however, Anopheles dthali, Anopheles superpictus, Anopheles fluviatilis, Anopheles multicolor, Anopheles pulcherrimus and Anopheles turkhudi can also be found in the area. Anopheles stephensi was reported susceptible to malathion, propoxur, primphos-methyl, lambda-cyhalothrin permethrin and deltamethrin, and resistant to DDT and dieldrin in the area. During the study period a total of 10 665 positive cases were reported, mainly due to local transmission (99.6%). Plasmodium vivax was the main causative agent followed by Plasmodium falciparum . There were reports about drug resistance of Plasmodium falciparum in the area. Conclusions Using different parameters, Minab was classified into 3 strata. A plan was designed based on described goal, objectives and targets. The approaches of this plan were categorized into: health education, early detection and correct treatment, and vector control. Main constraints of these approaches are population movement between Iran, Pakistan and Afghanistan; vector control challenges at district, inadequate skilled medical staff in malaria case management and weak inter-sectorial coordination for malaria control, especially in urban areas.
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- 2010
18. Larvicidal activity of essential oil and methanol extract of Nepeta menthoides against malaria vector Anopheles stephensi
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Hadjiakhoondi Abbas, Fallah Alireza, Sedaghat Mahdi, Abai Mohammad Reza, Vatandoost Hassan, and Khanavi Mahnaz
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Plant Components ,Insecticides ,Methanol extract ,Essential oil ,law.invention ,chemistry.chemical_compound ,Larvicidal activity ,law ,Anopheles ,Oils, Volatile ,Animals ,Malaria vector ,Anopheles stephensi ,Medicine(all) ,Traditional medicine ,biology ,Plant Extracts ,Methanol ,WHO method ,General Medicine ,Plant Components, Aerial ,biology.organism_classification ,Nepeta menthoides ,chemistry ,Larva ,Nepeta ,Regression Analysis - Abstract
Objective To investigate the larvicidal activity of essential oil and methanol extract of the Nepeta menthoides (N. menthoides) against main malaria vector, Anopheles stephensi ( An. stephensi ). Methods The essential oil of plant was obtained by Clevenger type apparatus and the methanol extract was supplied with Percolation method. Larvicidal activity was tested by WHO method. Twenty five fourth-instar larvae of An. stephensi were used in the larvicidal assay and four replicates were tested for each concentration. Five different concentrations of the oil and extract were tested for calculation of LC 50 and LC 90 values. Results The LC 50 and LC 90 values were determined by probit analysis. LC 50 was 69.5 and 234.3 ppm and LC 90 was 175.5 and 419.9 ppm for the extract and essential oil respectively. Conclusions According to the results of this study methanolic extract of plant exhibited more larvicidal activity than essential oil. This could be useful for investigation of new natural larvicidal compounds.
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19. Evaluation of biological control agents for mosquitoes control in artificial breeding places
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Paksa Azim, Abai Mohammad Reza, Vatandoost Hassan, Sanei Dehkordi Ali Reza, Rassi Yavar, and Salim Abadi Yaser
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Medicine(all) ,Larvicide ,Larva ,biology ,Density reduction ,Significant difference ,fungi ,Biological pest control ,Aquatic animal ,General Medicine ,Iran ,biology.organism_classification ,Gambusia ,Toxicology ,Mosquito ,Bacillus thuringiensis ,Biological control - Abstract
Objective: To evaluate the entomological impact of chlorpyrifos-methyl, Bacillus thuringiensis, and Gambusia affinis on mosquitoes control in artificial breeding places. Methods: A Latin square design with 4 replicates was performed in order to evaluate the efficacy of chlorpyrifos-methyl, Bacillus thuringiensis, and Gambusia affinis on larva. The larvicide was applied at the dosage of 100 mg a.h/ha, Bacillus thuringiensis at the recommended dosage and 10 fishes per m 2 were applied at 1伊1 m 2 artificial breeding sites. The larval densities for both anopheline and culicine were counted according to larvae /10 dippers prior and 24 h after application. Results: All three control agents are effective for mosquito density reduction, and the difference between the three agents and the control is significant (P
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20. Spatio-temporal distribution of malaria vectors (Diptera: Culicidae) across different climatic zones of Iran.
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Hanafi-Bojd AA, Azari-Hamidian S, Vatandoost H, and Charrahy Z
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- Animals, Demography, Iran, Rain, Temperature, Climate, Culicidae, Insect Vectors, Malaria transmission
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Malaria is a main vector-borne public health problem in Iran. The last studies on Iranian mosquitoes show 31 Anopheles species including different sibling species and genotypes, eight of them are reported to play role in malaria transmission. The objective of this study is to provide a reference for malaria vectors of Iran and to map their spatial and temporal distribution in different climatic zones. Shape files of administrative boundaries and climates of Iran were provided by National Cartographic Center. Data on distribution and seasonal activity of malaria vectors were obtained from different sources and a databank in district level was created in Excel 2003, inserted to the shape files and analyzed by ArcGIS 9.2 to provide the maps. Anopheles culicifacies Giles s.l., Anopheles dthali Patton, Anopheles fluviatilis James s.l., Anopheles maculipennis Meigen s.l., Anopheles sacharovi Favre, Anopheles stephensi Liston, and Anopheles superpictus Grassi have been introduced as primary and secondary malaria vectors and Anopheles pulcherrimus Theobald as a suspected vector in Iran. Temporal distribution of anopheline mosquitoes is restricted to April-December in northern Iran, however mosquitoes can be found during the year in southern region. Spatial distribution of malaria vectors is different based on species, thus six of them (except for Anopheles maculipennis s.l. and Anopheles sacharovi) are reported from endemic malarious area in southern and southeastern areas of Iran. The climate of this part is usually warm and humid, which makes it favorable for mosquito rearing and malaria transmission. Correlation between climate conditions and vector distribution can help to predict the potential range of activity for each species and preparedness for malaria epidemics., (Copyright © 2011 Hainan Medical College. Published by Elsevier B.V. All rights reserved.)
- Published
- 2011
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