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Articles by H. Alipour
Total Records ( 2 ) for H. Alipour
  H. Alipour , H. Ladonni , M.R. Abaie , M.D. Moemenbellah-Fard and M.R. Fakoorziba
  Insecticide-treated net is currently the best available method to control malaria. The extensive use of pyrethroid insecticides and the challenges of mosquito resistance to these chemical compounds are the main reasons for undertaking this study. The excito-repellency impacts of three different concentrations of three synthetic pyrethroid insecticide (lambdacyhalothrin, deltamethrin and cyfluthrin) impregnated bednets were evaluated against the susceptible and endophilic primary malaria vector, Anopheles stephensi Liston (Diptera: Culicidae) India susceptible strain under laboratory conditions. Young unfed female adult mosquitoes were exposed to animal bait covered with net in a dark exposure chamber. For each test, the results of mosquitoes` behavior were recorded after half an hour as dead, survived, blood-fed, recovered and retrieved in the exit trap. These studies clearly showed that populations of malaria vectors can be effectively controlled by the use of pyrethroid-treated bednets. The results inferred that deltamethrin was partially superior to other insecticides in terms of toxicity and revealed that cyfluthrin was clearly least effective and deltamethrin was most effective. The latter was 1.6 and 2.0 times more effective than lambdacyhalothrin and cyfluthrin, respectively, in killing An. stephensi mosquitoes. In addition, the mean recovery rate due to deltamethrin was 3.8 and 2.4 times less effective than cyfluthrin and lambdacyhalothrin, respectively. In conclusion, these data ranked the relative potency of the three pyrethroids in the order deltamethrin > lambdacyhalothrin > cyfluthrin.
  Fakoorziba , M.R. , M. Neghab , H. Alipour and M.D.Moemenbellah-Fard
  Crimean Congo Haemorrhagic Fever (CCHF) is an acute fatal viral infection caused by a virus from Bunyaviridae family, genus Nairovirus. The virus has been isolated from at least 31 species of ticks: among them Hyalomma species are the most important vectors. Geographically, CCHF is a widespread viral infection. Its mortality rate in Iran has been estimated to be 29.6 and 11.9% in 1999 and 2000, respectively. The majority of CCHF cases could be prevented. However, in order to identify and prioritize areas for prevention, to the best of authors` knowledge to date, no systematic study has been carried out in Fars province, Iran, to assess the extent, frequency and major outcomes of this fatal infection. The current descriptive retrospective case series study was, therefore, undertaken to address some of these issues. Data on CCHF cases for a period of four years (2001-4) were collected from different official sources in Iran. Data were categorized and analyzed by SPSS software, version 13/5. Gender, age, occupation, seasonal distribution and outcome of the disease were considered in data analysis. A total of 45 cases had been registered during the study period of which 29 were suspected and 16 were confirmed cases. CCHF was more common in men (85.5%) than in women (14.5%). Similarly, the disease was more prevalent in the 20-29 years old age group (37.5%). Nineteen cases (42%) resulted in death. Seasonal distribution of the infection revealed that it was more common in spring (37.5%). Additionally, 38% of the CCHF cases occurred among butchers, slaughterhouse workers, farmers and shepherds. The case fatality rates for the suspected and confirmed cases were 55.1 and 18.75%, respectively. Data gathered from different areas of Fars province showed that out of the 18 species identified to be the potential vectors of CCHF, 13 exist in this geographical area. In conclusion, the observation that butchers, slaughterhouse workers, farmers and shepherds form the most commonly affected occupations, indicate areas where preventive interventions, in particular health education efforts, might be usefully targeted.
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