Dengue in the Middle East and North Africa: A Systematic Review
| Autor: | Natalie B. Cleton, Laith J. Abu-Raddad, Marshall J. Glesby, Chantal Reusken, Marion Koopmans, John M. Humphrey |
|---|---|
| Přispěvatelé: | Virology |
| Rok vydání: | 2016 |
| Předmět: |
RNA viruses
Epidemiology viruses Dengue virus Disease Vectors medicine.disease_cause Antibodies Viral Mosquitoes Dengue fever Dengue Geographical Locations Sudan 0302 clinical medicine Africa Northern Aedes Seroepidemiologic Studies Pakistan 030212 general & internal medicine Enzyme-Linked Immunoassays Pathology and laboratory medicine biology Incidence (epidemiology) lcsh:Public aspects of medicine virus diseases Medical microbiology 3. Good health Insects Geography Infectious Diseases Serology Viruses Pathogens West Nile virus Research Article medicine.medical_specialty lcsh:Arctic medicine. Tropical medicine Asia Arthropoda lcsh:RC955-962 030231 tropical medicine Aedes Aegypti Research and Analysis Methods Microbiology 03 medical and health sciences SDG 3 - Good Health and Well-being Environmental health medicine Seroprevalence Animals Humans Immunoassays Disease burden Medicine and health sciences Biology and life sciences Flaviviruses Public Health Environmental and Occupational Health Organisms Viral pathogens Outbreak lcsh:RA1-1270 Dengue Virus medicine.disease biology.organism_classification Virology Invertebrates Insect Vectors Microbial pathogens Vector-Borne Diseases People and Places Africa Immunologic Techniques |
| Zdroj: | PLoS Neglected Tropical Diseases (print), 10(12):e0005194. Public Library of Science PLoS Neglected Tropical Diseases PLoS Neglected Tropical Diseases, Vol 10, Iss 12, p e0005194 (2016) |
| ISSN: | 1935-2735 |
| Popis: | Background Dengue virus (DENV) infection is widespread and its disease burden has increased in past decades. However, little is known about the epidemiology of dengue in the Middle East and North Africa (MENA). Methodology / Principal Findings Following Cochrane Collaboration guidelines and reporting our findings following PRISMA guidelines, we systematically reviewed available records across MENA describing dengue occurrence in humans (prevalence studies, incidence studies, and outbreak reports), occurrence of suitable vectors (Aedes aegypti and Aedes albopictus), and DENV vector infection rates. We identified 105 human prevalence measures in 13 of 24 MENA countries; 81 outbreaks reported from 9 countries from 1941–2015; and reports of Ae. aegypti and/or Ae. albopictus occurrence in 15 countries. The majority of seroprevalence studies were reported from the Red Sea region and Pakistan, with multiple studies indicating >20% DENV seroprevalence in general populations (median 25%, range 0–62%) in these subregions. Fifty percent of these studies were conducted prior to 1990. Multiple studies utilized assays susceptible to serologic cross-reactions and 5% of seroprevalence studies utilized viral neutralization testing. There was considerable heterogeneity in study design and outbreak reporting, as well as variability in subregional study coverage, study populations, and laboratory methods used for diagnosis. Conclusions / Significance DENV seroprevalence in the MENA is high among some populations in the Red Sea region and Pakistan, while recent outbreaks in these subregions suggest increasing incidence of DENV which may be driven by a variety of ecologic and social factors. However, there is insufficient study coverage to draw conclusions about Aedes or DENV presence in multiple MENA countries. These findings illustrate the epidemiology of DENV in the MENA while revealing priorities for DENV surveillance and Aedes control. Author Summary Dengue is a mosquito-transmitted flavivirus whose global distribution and disease incidence has increased in recent decades. In the Middle East and North Africa, the epidemiology of dengue remains poorly characterized despite increasing reports of outbreaks and transmission in new areas. In order to understand the evidence supporting the epidemiology of this virus in the region and the areas in need of further research, we conducted a systematic review of studies reporting human prevalence, incidence, and infection rates in the virus’ main mosquito vectors, Aedes aegypti and Aedes albopictus. Among the studies identified, the Red Sea subregion and Pakistan reported the highest seroprevalence estimates for dengue. However, we encountered substantial heterogeneity in the distribution, quality, and quantity of published studies. These findings inform future research and surveillance priorities for DENV in the MENA region. |
| Databáze: | OpenAIRE |
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