Zahra Nasiri; Mohsen Kalantari; Masoumeh Amin; Salman Daliri; Kourosh Azizi
Abstract
Background: The prevalence of arboviruses is increasing worldwide. Their vectors are widely distributed in different continents of the world. Despite the importance of the phleboviruses, unfortunately data about the spread of the viruses in human and animal communities is very limited.Methods: This study ...
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Background: The prevalence of arboviruses is increasing worldwide. Their vectors are widely distributed in different continents of the world. Despite the importance of the phleboviruses, unfortunately data about the spread of the viruses in human and animal communities is very limited.Methods: This study is a systematic review of phlebovirus and its vectors worldwide, with emphasis on Middle East countries including Iran. Accordingly, all English language articles which were conducted up to the end of 2020 were found by searching the databases, including Web of Science, PubMed, Google Scholar, Science Direct, and Scopus. Furthermore, the authors used the Strobe checklist to evaluate the quality of the articles.Results: Phlebotomus perniciosus was the main vector of the Tosca virus in the Mediterranean regions such as Italy, France, and Greece. In African counties, Aedes species were more important vectors of phleboviruses, especially Rift Valley fever. As these diseases can easily spread to even uninfected areas of Asia, permanent monitoring is needed to control phleboviruses.Conclusion: Practical methods have been used to control the vectors and hosts of phleboviruses. Some important methods are listed as follows: impregnated bed nets/curtains, residual spraying, repellents, establishment of the robust surveillance of animal and their products, and limited movement of livestock during outbreak time. These methods can minimize the risk of transmission of phleboviral diseases, especially RVF infection.
Jalal Mohammadi; Mohsen Kalantari; Zahra Nasiri; Davood Mehrabani; Hamzeh Alipour; Mohammad Djafar Moemenbellah-Fard; Kourosh Azizi
Abstract
Background: Visceral leishmaniasis (VL) is still widespread in tropical and subtropical regions worldwide. The vector of the disease is a sandfly, when infected with Leishmania parasite, can transmit the parasite from humans to other vertebrates. As knowledge about causative agents, vectors, and reservoirs ...
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Background: Visceral leishmaniasis (VL) is still widespread in tropical and subtropical regions worldwide. The vector of the disease is a sandfly, when infected with Leishmania parasite, can transmit the parasite from humans to other vertebrates. As knowledge about causative agents, vectors, and reservoirs of VL in Iran is necessary to control the disease, the present review study has focused on the disease elimination status from a health perspective in the country. Methods: In a recent review, various databases, such as Web of Science, PubMed, Scopus, Cochrane Library, Science Direct, Google Scholar, MEDLIB, Irandoc, Magiran, and SID were searched using the keywords “visceral leishmaniasis”, “VL”, “kala-azar”, “causative agent”, “parasite”, “vector”, “reservoir”, and “Iran”, and the retrieved data were extracted and reviewed independently during 2001-2019. Results: 475 published studies were recorded about VL in Iran from 2001 to 2021. 68 articles were later excluded from the study due to duplication after the initial review. Leishmania infantum and L. tropica were the causative agents, and dogs and humans were the reservoirs. The most common vectors were Phlebotomus major, P. kandelakii, P. keshishiani, P. alexandri, P. perfiliewi, and P. tobbi in different country regions. Conclusion: The prospect of eliminating VL in Iran is inadequate. Based on the findings, L. infantum and L. tropica were the causative agents, and humans and the Caninae subfamily were the VL reservoirs in the country. These findings can be added to the literature when health policymakers target preventive measures for VL in Iran.