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Bamorovat M, Sharifi I, Aflatoonian MR, Salarkia E, Agha Kuchak Afshari S, Pourkhosravani M, Karamoozian A, Khosravi A, Aflatoonian B, Sharifi F, Divsalar H, Amiri B, Shirzadi MR. A prospective longitudinal study on the elimination trend of rural cutaneous leishmaniasis in southeastern Iran: Climate change, population displacement, and agricultural transition from 1991 to 2021. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169684. [PMID: 38160824 DOI: 10.1016/j.scitotenv.2023.169684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 12/13/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
Leishmaniasis is a complex disease. Any change in weather conditions affects the humans' social and agricultural expansion and, consequently, the parasite's life cycle in terms of ecology, biodiversity, social stigma, and exclusion. This population-based prospective longitudinal investigation was conducted between 1991 and 2021 in a well-defined CL (cutaneous leishmaniasis) focus in Bam County, southeastern Iran. A robust health clinic and health surveillance system were responsible for the ongoing systematic documentation, detection, identification, and management of CL cases. The exponential smoothing method via the state space model was used in the univariate time series. The TTR, smooth, and forecast packages were used in R software. Landsat satellite images from 1991, 2001, 2011, and 2021 were employed in the physical development. During this period, the temperature increased while the rainfall and humidity decreased. The findings showed a downward trend in the standardized drought index. Also, the results showed that climate warming and ecological changes profoundly affected the area's agricultural patterns and topographical features. Furthermore, the last three decades witnessed an elimination trend for zoonotic CL (ZCL) and the predominance of anthroponotic CL (ACL). The present findings showed that the critical factors in the predominance of ACL and elimination of ZCL were rising temperature, drought, migration, unplanned urbanization, earthquake, and agrarian reform. The wall-enclosed palm tree gardens excluded the primary ZCL reservoir host. They controlled the disease while providing suitable conditions for the emergence/re-emergence of ACL in the newly established settlements and the unplanned ecozone. Therefore, robust health infrastructures, sustained financial support, and evidence-based research studies are crucial to facilitating the necessary surveillance, monitoring, and evaluation to control and eliminate the disease.
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Affiliation(s)
- Mehdi Bamorovat
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Iraj Sharifi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | | | - Ehsan Salarkia
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | | | | | - Ali Karamoozian
- Research Center for Modeling in Health, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Ahmad Khosravi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Behnaz Aflatoonian
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Fatemeh Sharifi
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Hassan Divsalar
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Behzad Amiri
- Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Mohammad Reza Shirzadi
- Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
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Topluoglu S, Taylan-Ozkan A, Alp E. Impact of wars and natural disasters on emerging and re-emerging infectious diseases. Front Public Health 2023; 11:1215929. [PMID: 37727613 PMCID: PMC10505936 DOI: 10.3389/fpubh.2023.1215929] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 07/17/2023] [Indexed: 09/21/2023] Open
Abstract
Emerging Infectious Diseases (EIDs) and Re-Emerging Infectious Diseases (REIDs) constitute significant health problems and are becoming of major importance. Up to 75% of EIDs and REIDs have zoonotic origin. Several factors such as the destruction of natural habitats leading humans and animals to live in close proximity, ecological changes due to natural disasters, population migration resulting from war or conflict, interruption or decrease in disease prevention programs, and insufficient vector control applications and sanitation are involved in disease emergence and distribution. War and natural disasters have a great impact on the emergence/re-emergence of diseases in the population. According to a World Bank estimation, two billion people are living in poverty and fragility situations. Wars destroy health systems and infrastructure, curtail existing disease control programs, and cause population movement leading to an increase in exposure to health risks and favor the emergence of infectious diseases. A total of 432 catastrophic cases associated with natural disasters were recorded globally in 2021. Natural disasters increase the risk of EID and REID outbreaks by damaging infrastructure and leading to displacement of populations. A Generic National Action Plan covering risk assessment, mechanism for action, determination of roles and responsibilities of each sector, the establishment of a coordination mechanism, etc. should be developed.
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Affiliation(s)
- Seher Topluoglu
- Provincial Health Directorate of Ankara, Republic of Türkiye Ministry of Health, Ankara, Türkiye
| | - Aysegul Taylan-Ozkan
- Department of Medical Microbiology, Medical Faculty, TOBB University of Economics and Technology, Ankara, Türkiye
| | - Emine Alp
- Department of Clinical Microbiology and Infectious Diseases, Medical Faculty, Ankara Yildirim Beyazit University, Ankara, Türkiye
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Bozorg-Omid F, Kafash A, Jafari R, Akhavan AA, Rahimi M, Rahimi Foroushani A, Youssefi F, Shirzadi MR, Ostadtaghizadeh A, Hanafi-Bojd AA. Predicting current and future high-risk areas for vectors and reservoirs of cutaneous leishmaniasis in Iran. Sci Rep 2023; 13:11546. [PMID: 37460690 PMCID: PMC10352301 DOI: 10.1038/s41598-023-38515-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 07/10/2023] [Indexed: 07/20/2023] Open
Abstract
Climate change will affect the distribution of species in the future. To determine the vulnerable areas relating to CL in Iran, we applied two models, MaxEnt and RF, for the projection of the future distribution of the main vectors and reservoirs of CL. The results of the models were compared in terms of performance, species distribution maps, and the gain, loss, and stable areas. The models provided a reasonable estimate of species distribution. The results showed that the Northern and Southern counties of Iran, which currently do not have a high incidence of CL may witness new foci in the future. The Western, and Southwestern regions of the Country, which currently have high habitat suitability for the presence of some vectors and reservoirs, will probably significantly decrease in the future. Furthermore, the most stable areas are for T. indica and M. hurrianae in the future. So that, this species may remain a major reservoir in areas that are present under current conditions. With more local studies in the field of identifying vulnerable areas to CL, it can be suggested that the national CL control guidelines should be revised to include a section as a climate change adaptation plan.
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Affiliation(s)
- Faramarz Bozorg-Omid
- Department of Vector Biology and Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Anooshe Kafash
- Zoonoses Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Jafari
- School of Public Health, Esfahan Health Research Station, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Ahmad Akhavan
- Department of Vector Biology and Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Rahimi
- Department of Combat Desertification, Faculty of Desert Studies, Semnan University, Semnan, Iran
| | - Abbas Rahimi Foroushani
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fahimeh Youssefi
- Department of Photogrammetry and Remote Sensing, Faculty of Geodesy and Geomatics Engineering, K. N. Toosi University of Technology, Tehran, Iran
| | - Mohammad Reza Shirzadi
- Center for Research of Endemic Parasites of Iran, Tehran University of Medical Sciences, Tehran, Iran
- Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Abbas Ostadtaghizadeh
- Department of Health in Emergencies and Disasters, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Ahmad Ali Hanafi-Bojd
- Department of Vector Biology and Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
- Zoonoses Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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4
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Karami M, Gorgani-Firouzjaee T, Chehrazi M. Prevalence of cutaneous Leishmaniasis in the Middle East: a systematic review and meta-analysis. Pathog Glob Health 2023; 117:356-365. [PMID: 36222473 PMCID: PMC10177677 DOI: 10.1080/20477724.2022.2133452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
Cutaneous leishmaniasis (CL), caused by an obligate intracellular protozoan parasite from the genus Leishmania, imposing a significant burden on underdeveloped countries especially those located in the Middle East. Four electronic databases were searched to evaluate the prevalence of CL in the Middle East. The random effects model (95% confidence intervals (CI)) were applied to determine the overall and subgroup pooled prevalence. Heterogeneity was assessed by Cochran's Q test and I2 statistics. Among 2424 peer-reviewed papers, 37 datasets from 34 studies were included in the current meta-analysis. 285560 individuals were assessed across 9 Middle Eastern countries. The pooled prevalence of CL was estimated at 12% (95% CI 9-15 %; 10718/285560). The highest prevalence rate was observed in Syria (39%, 37-42%), and the lowest one was found in Iraq and Lebanon (0%, 0-1%). The prevalence of CL in studies that applied LST assays had the highest rate (48%, 17-80%). The infection rate in males was similar to females (7%, 4-10%). The prevalence of infection in individuals living in urban areas was higher than in rural areas (14%, 10-19%). The prevalence of CL in the age group 0-15 years was higher than in individuals 16-40 and >40 years (9%, 6-13%). Most of the lesions were found on the face, and single lesions were more prevalent than two and three ones. In conclusion, the occurrence of CL was considerable in Middle Eastern countries. Therefore, more efforts should be made to precisely report the CL in this region for developing appropriate preventive and controlling strategies. .
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Affiliation(s)
- Mohsen Karami
- Department of Mycology and Parasitology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Tahmineh Gorgani-Firouzjaee
- Department of Mycology and Parasitology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Mohammad Chehrazi
- Department of Biostatistics and Epidemiology, School of Health Science, Babol University of Medical Sciences, Babol, Iran
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Sharifi I, Khosravi A, Aflatoonian MR, Salarkia E, Bamorovat M, Karamoozian A, Moghadam MN, Sharifi F, Afshar AA, Afshari SAK, Gharachorloo F, Shirzadi MR, Amiri B, Zainali M, Doosti S, Zamani O, Gouya MM. Cutaneous leishmaniasis situation analysis in the Islamic Republic of Iran in preparation for an elimination plan. Front Public Health 2023; 11:1091709. [PMID: 37188278 PMCID: PMC10176454 DOI: 10.3389/fpubh.2023.1091709] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 03/30/2023] [Indexed: 05/17/2023] Open
Abstract
Iran has invariably been under the growing public health threat of cutaneous leishmaniasis (CL), a significant barrier to local development that hinders the prevention and control efforts toward eliminating the disease. So far, no comprehensive and in-depth epidemiological analysis of the CL situation has been carried out nationwide. This study aimed to employ advanced statistical models to analyze the data collected through the Center for Diseases Control and Prevention of Communicable Diseases during 1989-2020. However, we emphasized the current trends, 2013-2020, to study temporal and spatial CL patterns. In the country, the epidemiology of CL is incredibly intricate due to various factors. This fact indicates that the basic infrastructure, the preceding supports, and the implementation plan related to preventive and therapeutic measures need crucial support. The leishmaniasis situation analysis is consistent with desperate requirements for efficient information on the control program in the area. This review provides evidence of temporally regressive and spatially expanding incidence of CL with characteristic geographical patterns and disease hotspots, signifying an urgent need for comprehensive control strategies. This information could be a suitable model and practical experience in the Eastern Mediterranean Region, where over 80% of CL is reported.
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Affiliation(s)
- Iraj Sharifi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ahmad Khosravi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Ehsan Salarkia
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Mehdi Bamorovat
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Karamoozian
- Research Center for Modeling in Health, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Mahmoud Nekoei Moghadam
- Research Center for Health Services Management, Kerman University of Medical Sciences, Kerman, Iran
| | - Fatemeh Sharifi
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Abbas Aghaei Afshar
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Faranak Gharachorloo
- Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Mohammad Reza Shirzadi
- Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Behzad Amiri
- Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Mohammad Zainali
- Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Sara Doosti
- Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Omid Zamani
- Universal Health Coverage for Communicable Diseases (UHC: CD), World Health Organization, Country Office, Tehran, Iran
| | - Mohammad Mahdi Gouya
- Center for Communicable Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
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Mavrouli M, Mavroulis S, Lekkas E, Tsakris A. The Impact of Earthquakes on Public Health: A Narrative Review of Infectious Diseases in the Post-Disaster Period Aiming to Disaster Risk Reduction. Microorganisms 2023; 11:microorganisms11020419. [PMID: 36838384 PMCID: PMC9968131 DOI: 10.3390/microorganisms11020419] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/10/2023] Open
Abstract
Earthquakes are among the most impressive natural phenomena with very high potential to set off a chain of effects that significantly affects public health through casualties and injuries. Related disasters are attributed not only to the strong ground motion and coseismic phenomena but also to secondary effects, comprising mainly landslides and tsunamis, among others. All these can create harsh conditions favorable for the emergence of infectious diseases that are capable of causing additional human and economic losses and disruption of the emergency and recovery process. The present study comprises an extensive narrative review of the existing literature on the earthquake-triggered infectious diseases recorded worldwide, along with their symptoms, causative pathogens, associated risk factors, most vulnerable population groups, and prevention strategies. Respiratory, gastrointestinal, and vector-borne diseases, as well as wound and skin infections, are mainly recorded among the earthquake-affected population. Measures for effectively preventing earthquake-triggered infectious diseases are also proposed. One of the widely proposed measures is the establishment of a proper disease surveillance system in order to immediately and effectively identify the pre- and post-disaster occurrence of infectious diseases. This approach significantly contributes to disease trends monitoring, validation of early warning, and support of the emergency response and recovery actions.
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Affiliation(s)
- Maria Mavrouli
- Department of Microbiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Correspondence:
| | - Spyridon Mavroulis
- Department of Dynamic Tectonic Applied Geology, Faculty of Geology and Geoenvironment, School of Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece
| | - Efthymios Lekkas
- Department of Dynamic Tectonic Applied Geology, Faculty of Geology and Geoenvironment, School of Sciences, National and Kapodistrian University of Athens, 15784 Athens, Greece
| | - Athanassios Tsakris
- Department of Microbiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
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A novel rapid LAMP test for identification of cutaneous leishmaniasis: An evaluation and comparative analysis of three molecular methods. Microb Pathog 2022; 169:105612. [PMID: 35660477 DOI: 10.1016/j.micpath.2022.105612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 05/29/2022] [Accepted: 05/30/2022] [Indexed: 11/21/2022]
Abstract
Leishmaniasis is a neglected and widespread parasitic disease that can lead to serious health problems. The conventional method in diagnostic health clinics is direct smear preparation of the lesion and staining with standard Giemsa to visualize the amastigote stage and by culturing the organism in an NNN (Novy-MacNeal-Nicolle) to observe the promastigote form of the parasite. In the case of urban-type leishmaniasis, microscopic diagnosis is sometimes not possible due to the reduction of amastigotes in patients' wounds. Because most endemic areas are located in regions that do not have access to laboratories equipped with molecular tools, access to a rapid test to diagnose the disease is essential. In this study, for the first time for DNA extraction, the scalpel used for sampling was washed and extracted by boiling method. Also, the LAMP technique in this study was modified so that the test can be performed in 10 minutes and the results can be recognized by color. We used four microscopic methods, conventional PCR, real-time PCR, and LAMP, to diagnose urban-type leishmaniasis and compared the results of these methods with each other. The sensitivity and specificity of LAMP were higher than other techniques used. Therefore, it allows rapid diagnosis for timely treatment of the disease to control the primary reservoir host more quickly in ACL as humans are the principal source of infection. This test is performed at a high-speed and is cost-effective. For its convenience, this test is highly recommended to be used in endemic areas.
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Aflatoonian M, Sharifi I, Aflatoonian B, Salarkia E, Khosravi A, Tavakoli Oliaee R, Bamorovat M, Aghaei Afshar A, Babaei Z, Sharifi F, Taheri Soodejani M, Shirzadi MR, Gouya MM, Nadim A, Sharifi H. Fifty years of struggle to control cutaneous leishmaniasis in the highest endemic county in Iran: A longitudinal observation inferred with interrupted time series model. PLoS Negl Trop Dis 2022; 16:e0010271. [PMID: 35486645 PMCID: PMC9053817 DOI: 10.1371/journal.pntd.0010271] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 02/21/2022] [Indexed: 11/21/2022] Open
Abstract
Negligible data are available following major social activities and environmental changes on leishmaniasis. Therefore, how interactions between these events influence cutaneous leishmaniasis (CL) risk is not well-known. This longitudinal study was undertaken to explore the impact of interventions conducted between 1971 and 2020 in Bam county, which has had the highest disease burden in Iran. Only confirmed CL cases during this period were taken into account. Data were analyzed by SPSS 22 using the X2 test to assess the significance of the difference between proportions. Moreover, we used interrupted time series (ITS) to assess the impact of three environmental events during this period. Overall, 40,164 cases of CL occurred in the past five decades. Multiple complex factors were among the leading causes that synergistically induced the emergence/re-emergence of CL outbreaks in Bam. The main factors attributed negatively to CL control were cessation of malaria spraying activity, expansion of the city spaces, and a massive earthquake creating new breeding potentials for the vectors. The highest impact on CL incidence during these years was related to the earthquake [coefficient = 17.8 (95% CI: 11.3, 22.7); p-value < 0.001]. Many factors can contribute to CL outbreaks in endemic foci. They also can cause new foci in new areas. Since humans are the single reservoir for CL in this area, early detection and effective management significantly contribute to controlling CL to reduce the disease burden. However, essential evidence gaps remain, and new tools are crucial before the disease can ultimately be controlled. Nevertheless, sustained funding and more trained task forces are essential to strengthen surveillance and case management and monitor the interventions’ impact. We aimed to conduct this longitudinal observation to assess the impact of interventions applied between 1971 and 2020 in Bam county, Iran’s highest anthroponotic cutaneous leishmaniasis burden. Only confirmed CL cases were taken into account. Overall, 40,164 cases of CL occurred in the past five decades. Multiple complex factors were among the leading causes that synergistically induced the emergence/re-emergence of CL outbreaks in Bam. The main factors attributed negatively to CL control were cessation of malaria spraying activity, expansion of the city spaces, and a massive earthquake creating new breeding potentials for the vectors. Since humans are the single reservoir host for CL in this area, early detection and effective management significantly contribute to controlling CL to reduce the disease burden. However, continuous funding and more trained forces are critical to strengthening surveillance and case management and monitoring the interventions’ impact.
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Affiliation(s)
| | - Iraj Sharifi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Behnaz Aflatoonian
- Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Ehsan Salarkia
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ahmad Khosravi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Mehdi Bamorovat
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Abbas Aghaei Afshar
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Zahra Babaei
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Fatemeh Sharifi
- Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Moslem Taheri Soodejani
- Center for Healthcare Data Modeling, Departments of Biostatistics and Epidemiology, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | | - Mohammad Mehdi Gouya
- Center for Diseases Control, Ministry of Health and Medical Education, Tehran, Iran
| | - Abolhassan Nadim
- Department of Epidemiology and Biostatics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Sharifi
- HIV/STI Surveillance Research Center, and WHO Collaborating Center for HIV Surveillance, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
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Incidence of infectious diseases after earthquakes: a systematic review and meta-analysis. Public Health 2021; 202:131-138. [PMID: 34953295 DOI: 10.1016/j.puhe.2021.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 10/13/2021] [Accepted: 11/08/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVES Evaluation of the incidence of infectious diseases after natural disasters can help develop healthcare policies. This study provides a global review of the most prevalent infectious diseases observed after earthquakes. STUDY DESIGN A systematic review and meta-analysis were performed. METHODS A systematic review was performed on electronic databases, including PubMed, Scopus and Web of Science, up to March 2020 (with no time limitations). Studies addressing earthquakes and infectious diseases were collected based on specified inclusion and exclusion criteria. Subsequently, the quality of the studies was assessed by the Newcastle-Ottawa scale (NOS). Data analyses were carried out on six subgroups under five different disease categories using comprehensive meta-analysis software. RESULTS In total, 24 studies qualified for the systematic review and 18 were included in the meta-analysis. The incidences of gastrointestinal infections, dermal infections, respiratory infections, central nervous system infections and other infectious diseases were as follows: odds ratio (OR) 163.4 (95% confidence interval [CI]: 31.0-858.1), OR 84.5 (95% CI: 27.1-262.8), OR 9.9 (95% CI: 3.5-27.7), OR 0.5 (95% CI: 0.2-1.1) and OR 4.4 (95% CI: 1.9-9.9) cases per 100,000 people, respectively. The association between the incidences of infectious diseases before and after earthquakes was significant, namely, 1.561 (95% CI: 1.244-1.957) with a P-value <0.001. CONCLUSIONS The results show an increase in the prevalence of infectious diseases after earthquakes. Governments should take essential measures to be better prepared for such unpredictable catastrophes.
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Hajjaran H, Saberi R, Borjian A, Fakhar M, Hosseini SA, Ghodrati S, Mohebali M. The Geographical Distribution of Human Cutaneous and Visceral Leishmania Species Identified by Molecular Methods in Iran: A Systematic Review With Meta-Analysis. Front Public Health 2021; 9:661674. [PMID: 34249836 PMCID: PMC8267797 DOI: 10.3389/fpubh.2021.661674] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 05/31/2021] [Indexed: 01/11/2023] Open
Abstract
Leishmaniasis is one of the most common vector-borne parasitic diseases in Iran. Leishmania species identification is necessary for epidemiological aspects, precise prognosis, control and treatment of the disease. We systematically searched all the studies, reports, and documentation related to species identification and geographical distribution of causative agents of cutaneous (CL), mucosal (ML), and visceral leishmaniasis (VL) using DNA-based molecular diagnostic techniques in Iran. International databases including PubMed, ScienceDirect, Embase, Google Scholar, Scopus, and Web of Science were systemically searched for English articles and Iran's databases including SID, IranMedex and Magiran were searched for Persian reports and articles. Searches were performed from 1999 to 2019 (20 years). The current review was conducted using the keywords: cutaneous leishmaniasis, visceral leishmaniasis, Leishmania species, Human, Molecular, PCR, and Iran. The study quality was evaluated using the NOS checklist. This meta-analysis procedure was accomplished using STATA, version 2.7.9. Of the 3,426 records identified in the initial search, 154 articles met inclusion criteria and qualified for the systematic review and meta-analysis. In subgroup analysis, the pooled frequency of causative agents of CL isolates was 67.3% (95% CI: 59.51–74.67%) for L. major and 32.1% (95% CI: 24.72–39.87%) for L. tropica. In addition, the pooled frequency of causative agents of VL isolates was 97.1% (95% CI: 94.6–98.8%) for L. infantum and 2.9% (95% CI: 1.12–5.37%) for L. tropica. The findings of this study showed that the main causative agents of CL and VL in Iran are L. major and L. infantum, respectively. Moreover, kinetoplast DNA (kDNA) and internal transcriber spacer (ITS) were the most used markers for identifying Leishmania species. The current study provides valuable data to encourage and direct researchers as well as public health managers in the comprehensive leishmaniasis control and prevention planning in Iran.
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Affiliation(s)
- Homa Hajjaran
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Saberi
- Toxoplasmosis Research Center, Communicable Diseases Institute, Iranian National Registry Center for Lophomoniasis and Toxoplasmosis, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
| | - Alireza Borjian
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Fakhar
- Toxoplasmosis Research Center, Communicable Diseases Institute, Iranian National Registry Center for Lophomoniasis and Toxoplasmosis, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Abdollah Hosseini
- Toxoplasmosis Research Center, Communicable Diseases Institute, Iranian National Registry Center for Lophomoniasis and Toxoplasmosis, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Sajjad Ghodrati
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mohebali
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Rassi Y, Ebrahimi S, Abai MR, Vatandoost H, Akhavan AA, Afshar AA. Comparative Testing of Susceptibility Levels of Phlebotomus sergenti, the Main Vector of Anthroponotic Cutaneous Leishmaniasis, to Conventional Insecticides Using Two Capture Methods in Kerman City, Southeastern Iran. J Arthropod Borne Dis 2021; 15:82-96. [PMID: 34277858 PMCID: PMC8271233 DOI: 10.18502/jad.v15i1.6488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 03/13/2021] [Indexed: 12/02/2022] Open
Abstract
Background: Collecting live sand flies from indoor sites is a major challenge for researchers in large cities due to the reluctance of families to survey their homes. This study was conducted to assess the efficacy of two methods for collecting sand flies for use in susceptibility tests in the urban area of Kerman, southeastern Iran. Methods: Sandflies were mainly collected using both baited traps and hand catch methods from outdoor and indoor sites. Susceptibility tests were separately done according to the standard World Health Organization testing protocol on Phlebotomus sergenti, including 60-minute exposure to DDT 4.0%, propoxur 0.1%, deltamethrin 0.05%, and malathion 5.0%. Results: During this research, the natural habitats and suitable indoor sites were selected to predict the density of live sand fly with perfect accuracy. The number of live Ph. sergenti caught by hand catch and baited traps methods was 42 and 361 in indoor and outdoor sites, respectively. The mortality rate of Ph. sergenti exposed to DDT 4%, deltamethrin 0.05, malathion 5%, and propoxur was 100%. Conclusion The baited traps showed a significant efficiency compared to hand catch for collecting live Ph. sergenti for use in susceptibility tests in urban areas. The Ph. sergenti collected from both indoor and outdoor sites were susceptible to all insecticides.
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Affiliation(s)
- Yavar Rassi
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahla Ebrahimi
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Abai
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Department of Environmental Chemical Pollutants and Pesticides, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
| | - Hassan Vatandoost
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Department of Environmental Chemical Pollutants and Pesticides, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Ahmad Akhavan
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Department of Environmental Chemical Pollutants and Pesticides, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
| | - Abass Aghaie Afshar
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
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12
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Karimi T, Sharifi I, Aflatoonian MR, Aflatoonian B, Mohammadi MA, Salarkia E, Babaei Z, Zarinkar F, Sharifi F, Hatami N, Khosravi A, Eskandari A, Solimani E, Shafiee M, Mozaffari M, Heshmatkhah A, Amiri R, Farajzadeh S, Kyhani A, Aghaei Afshar A, Jafarzadeh A, Bamorovat M. A long-lasting emerging epidemic of anthroponotic cutaneous leishmaniasis in southeastern Iran: population movement and peri-urban settlements as a major risk factor. Parasit Vectors 2021; 14:122. [PMID: 33627184 PMCID: PMC7903377 DOI: 10.1186/s13071-021-04619-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 02/01/2021] [Indexed: 01/18/2023] Open
Abstract
Background Epidemics of cutaneous leishmaniasis (CL) are occurring more frequently and spreading faster and farther than before in many areas of the world. The present study aimed to assess a long-lasting emerging epidemic (2005–2019) of 5532 cases with anthroponotic CL (ACL) in peri-urban areas of Kerman city in southeastern Iran. Methods This descriptive-analytical study was carried out for 15 years in Kerman province, southeastern Iran. The data were passively obtained through the health surveillance system and the Kerman Leishmaniasis Research Center. Every subject was diagnosed using direct smear microscopy. The representative causative agent was further examined by ITS1-PCR, PCR-RFLP, 7SL RNA gene sequencing and phylogenetic analyses. For each subject, a case report form designating demographic and clinical data was recorded. Results A different pattern of ACL incidence was found in peri-urban areas compared to that in the city of Kerman. The incidence rate of ACL cases has significantly increased (P < 0.001) from 2005 to 2016 in new settlements with a gradual decline after that. The overall average risk of contracting the disease was 7.6 times higher in peri-urban areas compared to Kerman city, an old endemic focus. All isolates consisting of six variants were confirmed to be Leishmania tropica. The overall pattern of the ACL infection indicates that the etiological agent of ACL is propagated and transmitted by the bite of female Phlebotomus sergenti sandflies from person to person from dissimilar clones as reflected by the complexity of the migrants’ backgrounds in the province. Conclusions The movement of populations and establishment of new settlements in peri-urban areas close to endemic areas are major risk factors for and are directly linked to CL. The underlying factors of this emerging ACL epidemic caused by L. tropica were disasters and droughts, among others. A robust commitment to a multilateral approach is crucial to make improvements in this area. This will require decisive coordinated actions through all governmental factions and non-governmental organizations. Furthermore, active and passive case detection strategies, early diagnosis, and effective treatment could help control the disease. ![]()
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Affiliation(s)
- Taiebeh Karimi
- Department of Medical Parasitology and Mycology, Kerman University of Medical Sciences, Kerman, Iran
| | - Iraj Sharifi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | - Mohammad Reza Aflatoonian
- Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran.
| | - Behnaz Aflatoonian
- Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Ali Mohammadi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Ehsan Salarkia
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Zahra Babaei
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Farzaneh Zarinkar
- Department of Medical Parasitology and Mycology, Kerman University of Medical Sciences, Kerman, Iran
| | - Fatemeh Sharifi
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Nima Hatami
- Department of Endodontic, Faculty of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
| | - Ahmad Khosravi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Arsalan Eskandari
- County Health System Services, Kerman University of Medical Sciences, Kerman, Iran
| | - Elyas Solimani
- Provincial Health System Services, Kerman University of Medical Sciences, Kerman, Iran
| | - Mehdi Shafiee
- Provincial Health System Services, Kerman University of Medical Sciences, Kerman, Iran
| | - Masoumeh Mozaffari
- Provincial Health System Services, Kerman University of Medical Sciences, Kerman, Iran
| | - Amireh Heshmatkhah
- Shahid Dadbin Clinic, Kerman University of Medical Sciences, Kerman, Iran
| | - Rezvan Amiri
- Department of Dermatology, Afzalipour Hospital, Kerman University of Medical Sciences, Kerman, Iran
| | - Saeideh Farajzadeh
- Department of Dermatology, Afzalipour Hospital, Kerman University of Medical Sciences, Kerman, Iran
| | - Alireza Kyhani
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Abbas Aghaei Afshar
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Abdollah Jafarzadeh
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Mehdi Bamorovat
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
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13
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Ziaei Hezarjaribi H, Karamian M, Geran Orimi T, Pagheh AS, Emadi SN, Fakhar M, Derakhshani-Niya M. Phylogenetic position of Leishmania tropica isolates from an old endemic focus in south-eastern Iran; relying on atypical cutaneous leishmaniasis. Transbound Emerg Dis 2020; 68:1493-1503. [PMID: 32881318 DOI: 10.1111/tbed.13818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 08/23/2020] [Accepted: 08/28/2020] [Indexed: 02/07/2023]
Abstract
Cutaneous leishmaniasis (CL) is a major health problem in Iran, with a heavy burden on human health and society. There is little knowledge about the molecular epidemiology of the disease, as well as phylogenetic relationship of causative agents in south-eastern Iran. The aim of the present study was to investigate the molecular aspects of CL, especially atypical CL in the Bam district, Kerman province, south-eastern Iran, as an endemic region of CL in Iran. The smears were collected from lesion samples of 353 patients clinically suspected to CL, who attended local health centres in the Bam district during 2016-2017. Direct smears were examined for Leishmania parasites using the Giemsa staining technique. Amplification of kinetoplast DNA (kDNA) and the ribosomal internal transcribed spacer 1(ITS-1) gene were carried out using polymerase chain reaction (PCR). Then, the ITS1-PCR products were sequenced for phylogenetic analysis. Overall, 278 cases were confirmed as CL by microscopic examination of Giemsa-stained slides. Clinical presentation of the lesions was basically of two types: (a) typical lesions and (b) atypical including lupoid ulcers, sporotrichoid, nodular and exudative lesions. The PCR assay on all specimens of skin lesions proved L. tropica as the main pathogenic agent. Phylogenic analysis revealed high similarity among isolates from the Bam district in the south-east with isolates from Birjand in eastern Iran, as well as with isolates from Herat province in western Afghanistan. The study provided valuable information concerning the genetic diversity of the parasite as one of the factors influencing the clinical manifestations in CL in south-eastern Iran, which could be the basis for planning future control strategies.
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Affiliation(s)
- Hajar Ziaei Hezarjaribi
- Molecular and Cell Biology Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Toxoplasmosis Research Center, Communicable Diseases Institute, Iranian National Registry Center for Lophomoniasis (INRCL) and Toxoplasmosis (INRCT), Department of Parasitolgy, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mehdi Karamian
- Department of Parasitology and Mycology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Tahmineh Geran Orimi
- Toxoplasmosis Research Center, Communicable Diseases Institute, Iranian National Registry Center for Lophomoniasis (INRCL) and Toxoplasmosis (INRCT), Department of Parasitolgy, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abdol Sattar Pagheh
- Infectious Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Seyed Naser Emadi
- Skin Research Center, Razi and Imam Khomeini Hospitals, Department of Dermatology, Faculty of Medicine, Tehran University of Medical Sciences, and Iranian Red Crescent, Tehran, Iran
| | - Mahdi Fakhar
- Toxoplasmosis Research Center, Communicable Diseases Institute, Iranian National Registry Center for Lophomoniasis (INRCL) and Toxoplasmosis (INRCT), Department of Parasitolgy, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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14
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Species Identification of Cutaneous Leishmaniasis in Quchan, Northeast of Iran. ACTA ACUST UNITED AC 2019. [DOI: 10.5812/jkums.90874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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Sharifi I, Aflatoonian MR, Babaei Z, Sharifi F, Keyhani A, Salarkia E, Khosravi A, Khamesipour A, Mohebali M, Nadim A, Bamorovat M. Emerging Epidemics of Cutaneous Leishmaniasis in Iran: Operational Aspects, Management and Implemented Control Approaches. JOURNAL OF MEDICAL MICROBIOLOGY AND INFECTIOUS DISEASES 2019. [DOI: 10.29252/jommid.7.3.52] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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16
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Cutaneous leishmaniasis: an epidemiological study in southwest of Iran. J Parasit Dis 2019; 43:190-197. [PMID: 31263323 DOI: 10.1007/s12639-018-1073-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 12/12/2018] [Indexed: 10/27/2022] Open
Abstract
The current study was aimed to evaluate the frequency and epidemiological aspects of cutaneous leishmaniasis (CL) in the southwest of Iran, an endemic focus for the leishmaniasis from 2014 to 2017. In the present retrospective cross-sectional study, all suspicious CL persons who were referred to health centers affiliated to Abadan School of Medical Sciences (Abadan and Khorramshahr cities) were tested. In this regard, both clinical and parasitological (staining with Giemsa) verifications were performed to diagnose a case. Furthermore, a structured questionnaire containing some demographic details was applied for each positive patient. In total, 151 and 132 positive CL cases were identified in Abadan and Khorramshahr cities, respectively. More frequency of CL was observed during the Winter season, among male subjects, and in urban inhabitants in both cities. The incidence of CL based on age distribution was higher in the age range of 20-30 years than others. Besides, the hands and feet were the most involved organs. Although the frequency of CL has declined in the region, CL is still a public health problem. More appropriate control strategies are required to limit and eliminate the infection in the future.
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Hamzavi Y, Nazari N, Khademi N, Hassani K, Bozorgomid A. Cutaneous leishmaniasis in Qasr-e Shirin, a border area in the west of Iran. Vet World 2018; 11:1692-1697. [PMID: 30774260 PMCID: PMC6362329 DOI: 10.14202/vetworld.2018.1692-1697] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/31/2018] [Indexed: 12/20/2022] Open
Abstract
Aim: The prevalence of cutaneous leishmaniasis (CL) is growing in Iran, and new sources of the disease have been found in the country. The purpose of this study was to describe the epidemiology of CL in Qasr-e Shirin County, Kermanshah Province, West of Iran. Qasr-e Shirin is located near the Iran-Iraq border, and several million pilgrims pass through this area to Iraq every year. Materials and Methods: A descriptive cross-sectional study was carried out for active case detection from April 1, 2014, to March 31, 2015. All individuals with suspicious lesions were identified through house-to-house visits in the aforementioned area. A questionnaire was filled out for everyone with clinical suspicion of CL. A diagnosis was made based on parasitological examination of the lesion exudate. The annual incidence and prevalence of CL were estimated. Results: In total, 5277 individuals were randomly screened for the presence of active lesions or scars suspected of CL. The overall prevalence of CL in the County was 4.8% (60 cases had active lesions and 194 cases had scars). All age groups were affected, but the highest incidence of CL was seen in the age group 20-29 years (1.9%). The incidence and prevalence were higher in women than men (5.5% vs. 4%). Most cases (45.6%) had a single lesion or scar and 44 (17.4%) patients had five or more lesions or scars. Conclusion: The incidence of CL in Qasr-e Shirin County is high. There is a need for further studies on reservoirs and vectors of leishmaniasis in this area. The results of such studies help to perform more efficient and timely spraying against phlebotomine sandfly or detect and decrease the animal reservoir population.
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Affiliation(s)
- Yazdan Hamzavi
- Department of Medical Parasitology and Mycology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Naser Nazari
- Department of Medical Parasitology and Mycology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Nahid Khademi
- Department of Disease, Kermanshah Health Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Keivan Hassani
- Students Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Arezoo Bozorgomid
- Department of Medical Parasitology and Mycology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
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18
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Oliaee RT, Sharifi I, Afgar A, Kareshk AT, Asadi A, Heshmatkhah A, Bamorovat M, Jafarzadeh A, Mohammadi MA, Daneshvar H. Unresponsiveness to meglumine antimoniate in anthroponotic cutaneous leishmaniasis field isolates: analysis of resistance biomarkers by gene expression profiling. Trop Med Int Health 2018; 23:622-633. [PMID: 29709098 DOI: 10.1111/tmi.13062] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Resistance to antimonials is a fundamental determinant of treatment failure in anthroponotic cutaneous leishmaniasis (ACL). Detection of reliable molecular markers to distinguish unresponsive and responsive parasites is critical for consolidating strategies to monitor drug efficacy. METHODS We analysed the expression of five major antimony resistance-associated genes that is aquaglyceroporin1 (AQP1), γ-glutamylcysteine synthetase (γ-GCS), multidrug resistance protein A (MRPA), trypanothione reductase (TR) and thiol-dependent reductase 1 (TDR1), in unresponsive and responsive Leishmania tropica field isolates by quantitative real-time PCR in comparison with sensitive and resistant reference strains. RESULTS Gene expression analysis showed the down-regulation of AQP1, γ-GCS and TDR1 by a factor of 1.9, 1.7 and 3.55, respectively, in unresponsive isolates vs. responsive ones. The average RNA expression level of MRPA increased by a factor of 1.9 in the unresponsive group. Isolates exhibited a strong positive linear correlation between gene expression of AQP1 and γ-GCS. A negative correlation between the AQP1 and γ-GCS expression level and lesion duration in responsive patients indicated the potential role in diagnosing drug-unresponsive parasites in endemic areas of ACL. CONCLUSION In cases of inconclusive outcomes of resistance tests in clinical isolates, expression analysis of a set of influential genes can be beneficial to identify distinctive biomarkers between antimony-unresponsive and responsive parasites.
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Affiliation(s)
- Razieh Tavakoli Oliaee
- Department of Medical Parasitology and Mycology, Kerman University of Medical Sciences, Kerman, Iran
| | - Iraj Sharifi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Afgar
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Amir Tavakoli Kareshk
- Department of Microbiology, School of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Arash Asadi
- Department of Medical Parasitology and Mycology, Kerman University of Medical Sciences, Kerman, Iran
| | - Amireh Heshmatkhah
- Dadbin Health Clinic, Kerman University of Medical Sciences, Kerman, Iran
| | - Mehdi Bamorovat
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Abdollah Jafarzadeh
- Department of Immunology, Medical School, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Ali Mohammadi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Hamid Daneshvar
- Department of Immunology, Medical School, Kerman University of Medical Sciences, Kerman, Iran
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Askari A, Sharifi I, Aflatoonian MR, Babaei Z, Ghasemi Nejad Almani P, Mohammadi MA, Alizadeh H, Hemati S, Bamorovat M. A newly emerged focus of zoonotic cutaneous leishmaniasis in South-western Iran. Microb Pathog 2018; 121:363-368. [PMID: 29709689 DOI: 10.1016/j.micpath.2018.04.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 03/14/2018] [Accepted: 04/24/2018] [Indexed: 11/26/2022]
Abstract
Leishmaniasis is rising in many countries, including Iran, due to climate change, refugee crises, urbanization and etc. The aim of this study was to explore the epidemiology, extent and identity of Leishmania species in a newly emerged focus in Abdanan County, Ilam Province, South-western Iran. This study was performed as a descriptive cross-sectional study by a systematic house-to-house approach. The Leishmania species was identified by RFLP-PCR and sequencing. Altogether, 46799 individuals consisting of 22907 (48.9) female and 23892 (51.1%) male were interviewed and physically examined for the presence of skin lesions. Overall, the incidence rate was 0.34% (n = 160). All age groups were affected and the incidence rate was the highest in <10 years of age group (0.49%) and the lowest in >50 years old individuals (0.15%), although there was no significant difference regarding the sex and age. The majority of patients had one lesion (47.5%) on hands (56%) and most of the cases occurred in Abdanan city (%54) in summer. Based on the RFLP-PCR analysis, all the Leishmania isolates were L. major of single genotype. A newly emerged focus of zoonotic CL caused by L. major occurred in South-western of Iran. Multiple risk factors created this epidemic area. Further studies on the vector and reservoir are crucial needed to provide evidences to select the prophylactic and therapeutic measures for future control strategies.
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Affiliation(s)
- A Askari
- Dept. of Parasitology and Mycology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
| | - I Sharifi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | - M R Aflatoonian
- Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran.
| | - Z Babaei
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | | | - M A Mohammadi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran.
| | - H Alizadeh
- Mazandaran University of Exercise Physiology Sciences, Babolsar, Iran.
| | - S Hemati
- Dept. of Parasitology and Mycology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
| | - M Bamorovat
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran.
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20
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Norouzinezhad F, Ghaffari F, Norouzinejad A, Kaveh F, Gouya MM. Cutaneous leishmaniasis in Iran: Results from an epidemiological study in urban and rural provinces. Asian Pac J Trop Biomed 2016. [DOI: 10.1016/j.apjtb.2016.05.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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21
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Wiwanitkit S, Wiwanitkit V. Tropical disease after earthquake: 2015 Nepal earthquake. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2015. [DOI: 10.1016/s2222-1808(15)60842-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Bahreini M, Bolorizadeh M, Dabiri S, Sharifi I. Evaluation of Organelle Changes in Promastigotes of Unresponsive Leishmania Tropica to Meglumine Antimoniate in Comparison with Sensitive and Standard Isolates by Electron Microscopy. Indian J Dermatol 2015; 60:321. [PMID: 26120175 PMCID: PMC4458960 DOI: 10.4103/0019-5154.156416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The control of leishmaniasis faces serious challenges because of resistance to the first-line antimonial drugs. We aimed to evaluate the differences in organelle changes of cultivated promastigotes obtained from skin lesions of sensitive and unresponsive isolates to meglumine antimoniate (Glucantime) by electron microscopy. MATERIAL AND METHODS This study was done in Bam city, southeastern Iran, in which the incidence of disease has sharply increased since the earthquake in 2003. The samples were taken from 66 patients who were referred to the cutaneous leishmaniasis (CL) treatment center in Bam. A questionnaire was completed for each individual, recording their demographic characteristics and CL status. The scraping smears provided from the edge of active lesions with sterile blades were fixed with methanol, stained by Giemsa, and examined under a compound light microscope for amastigote form simultaneously. To prepare the specimens for transmission electron imaging, promastigotes were centrifuged and resuspened. RESULTS Transmission electron microscopic study of the cultivated promastigotes revealed that there were alterations in the organelles and structures of sensitive isolates compared with unresponsive and standard ones. Organelles and structures such as mitochondria, kinetoplast, microtubules, cytoplasmic vacuoles, plasma membrane and vesicles were studied. The alterations such as disintegration of kinetoplast into thin filaments and condensation of kinetoplast DNA core, changes in size, number and location of vesicles and microtubules were observed. We noted intense cytoplasmic vacuolization, and considerable swelling of mitochondria. CONCLUSION The significance and relevance of these changes might help understand drug resistance patterns and help localize the best target site for inactivating the organism.
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Affiliation(s)
| | - Mehdi Bolorizadeh
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA, USA
| | - Shahriar Dabiri
- Department of Pathology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
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Gandacu D, Glazer Y, Anis E, Karakis I, Warshavsky B, Slater P, Grotto I. Resurgence of cutaneous leishmaniasis in Israel, 2001-2012. Emerg Infect Dis 2015; 20:1605-11. [PMID: 25271882 PMCID: PMC4193169 DOI: 10.3201/eid2010.140182] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Cutaneous leishmaniasis has long been endemic in Israel. After a 15-year period of moderate illness rates, reported incidence increased from 0.4 cases per 100,000 population in 2001 to 4.4 cases per 100,000 population in 2012, and the disease emerged in areas where its presence had previously been minimal. We analyzed all cases reported to the national surveillance system and found that outbreak patterns revealed an expansion of Leishmania major infections over large areas in the southern part of the country and the occurrence of spatially focused L. tropica outbreaks in the northern part of the country. Outbreaks often followed new construction in populated areas. Further study of factors affecting the transmission of cutaneous leishmaniasis is needed in Israel, as well as the development of effective methods to control the disease, an increase in awareness among health care professionals, and intensive public education regarding control measures in areas of known leishmaniasis foci.
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A Biosystematic and Morphometric Investigation of the Characters of Rodents (Mammalia: Rodentia) as Reservoir Hosts for Zoonotic Cutaneous Leishmaniasis in an Endemic Focus of Sistan-Baluchistan Province, Iran. ARCHIVES OF CLINICAL INFECTIOUS DISEASES 2015. [DOI: 10.5812/archcid.18823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hajjaran H, Mohebali M, Teimouri A, Oshaghi MA, Mirjalali H, Kazemi-Rad E, Shiee MR, Naddaf SR. Identification and phylogenetic relationship of Iranian strains of various Leishmania species isolated from cutaneous and visceral cases of leishmaniasis based on N-acetylglucosamine-1-phosphate transferase gene. INFECTION GENETICS AND EVOLUTION 2014; 26:203-12. [PMID: 24911282 DOI: 10.1016/j.meegid.2014.05.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 05/23/2014] [Accepted: 05/27/2014] [Indexed: 11/18/2022]
Abstract
The identity of Iranian Leishmania species has been resolved to some extent by some genetic markers. In this study, based on N-acetylglucosamine-1-phosphate transferase (nagt) gene, we further elucidated the identity and phylogeny of the prevalent species in this country. DNAs of 121 isolates belonging to cutaneous leishmaniasis (CL) patients, canine visceral leishmaniasis (CVL) cases, and Rhombomys opimus rodents were amplified by targeting a partial sequence of nagt gene. All the amplicons were analyzed with restriction fragment length polymorphism (RFLP) using Acc1 enzyme, and 49 amplicons representing different reservoir hosts were sequenced and aligned with similar sequences from GenBank database. The RFLP analysis revealed that 41 CL patients were infected Leishmania tropica and 36 with Leishmania major. Among 10 CVL isolates, 6 were identified as Leishmania infantum and 4 as L. tropica. Amongst 34 rodents' isolates, 11 and 23 isolates exhibited patterns similar to those of L. major, and L. tropica/Leishmania turanica, respectively. The sequencing results from all CL patients, CVL cases, and 4 reservoir rodents were in agreement with RFLP analysis and showed 99-100% homologies with the registered species of L. major, L. tropica, and L. infantum from Turkey, Tunisia, Iraq and Israel. Of the 7 rodent isolates exhibiting RFLP patterns similar to L. tropica/L. turanica, 3 exhibited the highest homologies (99-100%) with L. turanica and 4 with Leishmania gerbilli. The 49 nagt DNA sequences were grouped into five clusters representing L. major, L. tropica, L. infantum, L. turanica and L. gerbilli species, encompassing 19 haplotypes. No correlation was observed between intraspecies divergence and geographic distribution of haplotypes. The L. tropica haplotypes exhibited more homologies with those of L. infantum than L. major (97.2% vs. 96.9%), a probable indication to the potential ability of L. tropica to visceralize. Characterization of Iranian Leishmania isolates using nagt gene allowed unambiguous identification of five prevalent species with a high-resolution phylogeny.
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Affiliation(s)
- Homa Hajjaran
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mehdi Mohebali
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Center for Research of Endemic Parasites of Iran (CREPI), Tehran University of Medical Sciences, Tehran, Iran
| | - Aref Teimouri
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Oshaghi
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamed Mirjalali
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Kazemi-Rad
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Shiee
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Saied Reza Naddaf
- Department of Parasitology, Pasteur Institute of Iran, Tehran, Iran.
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Sharifi I, Aflatoonian MR, Aflatoonian B, Kermanizadeh A. The severity of cutaneous leishmaniasis before and after the earthquake in Bam, southeastern Iran. J Parasit Dis 2014; 39:741-4. [PMID: 26688645 DOI: 10.1007/s12639-014-0435-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 01/29/2014] [Indexed: 11/30/2022] Open
Abstract
Cutaneous leishmaniasis (CL) is a major disease with significant public health concerns in Iran. The objective of this study was to compare the severity of CL among the patients before and after the earthquake in the city and suburbs of Bam, southeastern Iran. This study was carried out as a descriptive-analytical manner by house-to-house visits in 2010 in Bam, southeastern Kerman province of Iran, where a massive earthquake has recently occurred. Overall, 1,481 individuals were selected as a cluster random sampling. Suspected lesions were detected by direct smear preparation and X(2) test was used for statistical significance at P < 0.05. Overall, 1,481 individuals (mean age; 25.7 ± 17.6 years) consisting of 51.4 % males and 48.6 % females were randomly selected. 549 individuals showed history of CL; 23.4 % belonged to before and 13.7 % belonged to after the earthquake. When the overall severity in terms of location, number, size and duration of lesions was considered, the lesions were less severe in the time period after the earthquake (P < 0.05) than those before the earthquake. Cutaneous leishmaniasis is currently considered as a growing public health concern worldwide, mainly due to creation of various risk factors particularly after a major natural disaster. Possibly the establishment of the CL health clinic to serve patients and to coordinate various activities had a major role in planning control strategies and thus reduction in severity of the CL disease.
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Affiliation(s)
- Iraj Sharifi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran ; Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Reza Aflatoonian
- Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Behnaz Aflatoonian
- Zoonoses Research Committee, Kerman University of Medical Sciences, Kerman, Iran
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Aghaei AA, Rassi Y, Sharifi I, Vatandoost H, Mollaie HR, Oshaghi M, Abai MR, Rafizadeh S. First report on natural Leishmania infection of Phlebotomus sergenti due Leishmania tropica by high resolution melting curve method in South-eastern Iran. ASIAN PAC J TROP MED 2014; 7:93-6. [DOI: 10.1016/s1995-7645(14)60002-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/19/2013] [Accepted: 01/15/2014] [Indexed: 11/26/2022] Open
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28
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Molecular identification and polymorphism determination of cutaneous and visceral leishmaniasis agents isolated from human and animal hosts in Iran. BIOMED RESEARCH INTERNATIONAL 2013; 2013:789326. [PMID: 24286085 PMCID: PMC3826333 DOI: 10.1155/2013/789326] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 07/27/2013] [Accepted: 08/06/2013] [Indexed: 11/30/2022]
Abstract
Amplification of internal transcript spacer 1 of ribosomal RNA (ITS1-RNA) gene followed by RFLP analysis and sequencing was used to identify the causing agents of cutaneous and visceral leishmaniasis (CL and VL) in humans and animal reservoir hosts from various geographical areas in Iran. We also used random amplified polymorphic DNA (RAPD-PCR) to obtain polymorphisms among isolates of Leishmania spp. Totally, 362 suspected human and animal cases including 173 CL, 49 VL, 60 rodents, and 80 domestic dogs were examined for Leishmania infection. From 112 culture-positive samples prepared from CL cases, 75 (67%) were infected with L. major and 37 (33%) with L. tropica. Of the 60 rodents examined, 25 (41.6%) harbored the Leishmania infection; 21 were infected with L. major and 4 with L. turanica. From 49 suspected VL, 29 were positive by direct agglutination test (DAT), whereas microscopy detected parasite in bone marrow of 25 and culture in 28 of the patients. Two VL patients were infected with L. tropica and 26 with L. infantum. Of the 80 domestic dogs, 56 showed anti-Leishmania antibodies with DAT. Of these, 55 were positive by both microscopy and culture. Molecular identity, obtained only for 47 samples, revealed L. infantum in 43 and L. tropica in 4 dogs. The polymorphisms among L. tropica and L. major isolates were 3.6% and 7.3%; the rate among human and canine VL isolates was 2.8% and 9.8%, respectively. Our results showed that at least four different Leishmania species with various polymorphisms circulate among humans and animal hosts in Iran.
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Zhang S, Lu Z, Liu H, Xiao X, Zhao Z, Bao G, Han J, Jing T, Chen G. Incidence of Japanese encephalitis, visceral leishmaniasis and malaria before and after the Wenchuan earthquake, in China. Acta Trop 2013; 128:85-9. [PMID: 23831431 DOI: 10.1016/j.actatropica.2013.06.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 06/22/2013] [Accepted: 06/25/2013] [Indexed: 10/26/2022]
Abstract
The objective of this study was to investigate the incidence of insect-borne diseases from 2005 to 2011, before and after the 2008 Wenchuan earthquake in Longnan City, Gansu Province, China. The data include Japanese encephalitis, Kala-azar and malaria cases from 2005 to 2011 that occurred in Longnan City. We calculated the incidence rates and analyzed the epidemiological characteristics of the diseases before and after the Wenchuan earthquake. During 2005-2011, 212 Japanese encephalitis cases were reported in Longnan City, and the average incidence was 1.11/100,000. Compared with any year from 2005 to 2010 the incidence of Japanese encephalitis in Longnan City in 2011 was not significantly different (P≥0.05). From 2005 to 2011, there were 719 Kala-azar cases in Longnan City, the annual incidence was 3.77/100,000, and the incidence in males was higher than females (P<0.001). Compared with 2011, there was no significant difference in incidence of Kala-azar in 2009 or 2010 (P≥0.05). There were seven total cases of malaria from 2005 to 2011, and the annual incidence was 0.07/100,000. Wudu District and Wen County were the main endemic areas of insect-borne diseases in Longnan City. The results showed that Japanese encephalitis and Kala-azar were common insect-borne infectious diseases in Longnan City, and that the incidence of insect-borne disease did not increase after the Wenchuan earthquake. It is possible that vector control measures implemented after the earthquake prevented an increase in such diseases.
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Molecular Identification of Leishmania Species Isolated From Human Cutaneous Leishmaniasis in Poledokhtar District, Lorestan Province, Iran. Jundishapur J Microbiol 2013. [DOI: 10.5812/jjm.8103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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31
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Shiee MR, hajjaran H, Mohebali M, Doroodgar A, saadat MH, Teimouri A, Afzali H, Shirzadi MR. A molecular and parasitological survey on cutaneous leishmaniasis patients from historical city of Kashan in Isfahan province, center of Iran. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2012. [DOI: 10.1016/s2222-1808(12)60093-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Isoenzyme and ultrastructural characterization of Leishmania tropica axenic amastigotes and promastigotes. Parasitol Res 2012; 112:643-8. [DOI: 10.1007/s00436-012-3179-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 10/28/2012] [Indexed: 10/27/2022]
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Mirzaei M, Sharifi I, Poursmaelian S. A new focus of anthroponotic cutaneous leishmaniasis and identification of parasite species by nested PCR in Jiroft, Iran. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s00580-011-1231-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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