Evidence map›Paper›PMID 34444386›Full record

ReviewInternational journal of environmental research and public health2021

What Could Explain the Lower COVID-19 Burden in Africa despite Considerable Circulation of the SARS-CoV-2 Virus?

Richard G Wamai, Jason L Hirsch, Wim Van Damme, David Alnwick, Robert C Bailey, Stephen Hodgins, Uzma Alam, Mamka Anyona

Abstract readReview
In one paragraph

Review in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

47 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Overcoming Vaccine Inequities and Research Gaps in Africa: Challenges and Opportunities Identified During the COVID-19 Pandemic.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Narrative Review Explaining the Role ofInfectious disease reports · 2024
    Review
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Richard G WamaiDepartment of Cultures, Societies, and Global Studies, Northeastern University, 201 Renaissance Park, 360 Huntington Ave., Boston, MA 02115, USA.ORCID 0000-0001-6566-5159
Jason L HirschDepartment of Cultures, Societies, and Global Studies, Northeastern University, 201 Renaissance Park, 360 Huntington Ave., Boston, MA 02115, USA.ORCID 0000-0003-4954-5776
Wim Van DammeDepartment of Public Health, Institute of Tropical Medicine, B-2000 Antwerp, Belgium.ORCID 0000-0002-6344-3007
David AlnwickDUNDEX (Deployable U.N.-Experienced Development Experts), FX68 Belturbet, Ireland.
Robert C BaileySchool of Public Health, University of Illinois at Chicago, Chicago, IL 60607, USA.
Stephen HodginsSchool of Public Health, University of Alberta, Edmonton, AB T6G 1C9, Canada.
Uzma AlamResearcher Africa Institute for Health Policy Foundation, Nairobi 020, Kenya.
Mamka AnyonaT.H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The differential spread and impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causing Coronavirus Disease 2019 (COVID-19), across regions is a major focus for researchers and policy makers. Africa has attracted tremendous attention, due to predictions of catastrophic impacts that have not yet materialized. Early in the pandemic, the seemingly low African case count was largely attributed to low testing and case reporting. However, there is reason to consider that many African countries attenuated the spread and impacts early on. Factors explaining low spread include early government community-wide actions, population distribution, social contacts, and ecology of human habitation. While recent data from seroprevalence studies posit more extensive circulation of the virus, continuing low COVID-19 burden may be explained by the demographic pyramid, prevalence of pre-existing conditions, trained immunity, genetics, and broader sociocultural dynamics. Though all these prongs contribute to the observed profile of COVID-19 in Africa, some provide stronger evidence than others. This review is important to expand what is known about the differential impacts of pandemics, enhancing scientific understanding and gearing appropriate public health responses. Furthermore, it highlights potential lessons to draw from Africa for global health on assumptions regarding deadly viral pandemics, given its long experience with infectious diseases.

Indexed as

COVID-19SARS-CoV-2AfricaHumansPandemicsSeroepidemiologic StudiesAfricaAfrican populationsCOVID-19 pandemicdemographic pyramidgovernment measureslower COVID-19 disease burdenSARS-CoV-2 virus spreadtrained immunity

Identifiers

PMID34444386
PMCPMC8391172

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.