Cited by 74Viral Infections and Outbreaks ResearchViral Infections and VectorsVirology and Viral Diseases

How severe and prevalent are Ebola and Marburg viruses? A systematic review and meta-analysis of the case fatality rates and seroprevalence

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Nyakarahuka, Luke, Kankya, Clovice, Krontveit, Randi, Mayer, Benjamin, Mwiine, Frank N., Lutwama, Julius, Skjerve, Eystein·2016·BMC Infectious Diseases

Abstract

BACKGROUND: Ebola and Marburg virus diseases are said to occur at a low prevalence, but are very severe diseases with high lethalities. The fatality rates reported in different outbreaks ranged from 24-100%. In addition, sero-surveys conducted have shown different seropositivity for both Ebola and Marburg viruses. We aimed to use a meta-analysis approach to estimate the case fatality and seroprevalence rates of these filoviruses, providing vital information for epidemic response and preparedness in countries affected by these diseases. METHODS: Published literature was retrieved through a search of databases. Articles were included if they reported number of deaths, cases, and seropositivity. We further cross-referenced with ministries of health, WHO and CDC databases. The effect size was proportion represented by case fatality rate (CFR) and seroprevalence. Analysis was done using the metaprop command in STATA. RESULTS: = 94.8%). The most severe species of ebolavirus was Zaire ebolavirus while Bundibugyo Ebolavirus was the least severe. CONCLUSIONS: The pooled CFR and seroprevalence for Ebola and Marburg viruses were found to be lower than usually reported, with species differences despite high heterogeneity between studies. Countries with an improved health surveillance and epidemic response have lower CFR, thereby indicating need for improving early detection and epidemic response in filovirus outbreaks.

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Authors
Nyakarahuka, L., Kankya, C., Krontveit, R., Mayer, B., Mwiine, F. N., Lutwama, J., & Skjerve, E.
Affiliations
  • Norwegian University of Life Sciences (NO)
  • Makerere University (UG)
  • Direktoratet for medisinske produkter (NO)
  • Universität Ulm (DE)
  • Uganda Virus Research Institute (UG)
Corresponding author
Nyakarahuka, Luke
Venue
BMC Infectious Diseases
Published
2016-11-25
Volume
16
Issue
1
Pages
708-708
ISSN
1471-2334 (ISSN-L)
OpenAlex
W2554930001
Cited by
74
References
91
Citations by year
2026: 4 · 2025: 6 · 2024: 11 · 2023: 9 · 2022: 10 · 2021: 8 · 2020: 8 · 2019: 9 · 2018: 4 · 2017: 4 · 2015: 1
FWCI
0.87
Type
journal article
Language
en
Open access
Locations
  • BMC Infectious Diseases (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • BIBSYS Brage (BIBSYS (Norway)) (acceptedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • NORA - Norwegian Open Research Archives (submittedVersion, cc-by)
  • Greater South Information System
Funders
NORAD (UGA-13/0031)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Viral Infections and Outbreaks Research
  • Health Sciences › Medicine › Infectious Diseases › Viral Infections and Vectors
  • Health Sciences › Medicine › Epidemiology › Virology and Viral Diseases
Keywords
Ebola virus disease, Marburg virus disease, case fatality rate, seroprevalence, filoviruses, Zaire ebolavirus, Bundibugyo ebolavirus, disease severity, epidemic preparedness, health surveillance, outbreak response
MeSH terms
Africa, Animals, Humans, Marburg Virus Disease, Severity of Illness Index, Prevalence, Seroepidemiologic Studies, Hemorrhagic Fever, Ebola

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