A year of genomic surveillance reveals how the SARS-CoV-2 pandemic unfolded in Africa
Science·
- DOI
- 10.1126/science.abj4336
- PMID
- 34672751
- PMCID
- PMC7613315
- OpenAlex
- W3163838900
- Study type
- Journal article
- Publisher
- American Association for the Advancement of Science (AAAS)
- Article type
- journal-article
- Integrity
- current
Publication version
This article has a linked preprint
The relationship comes from Crossref version metadata. Compare both records because findings and wording may have changed between versions.
Open linked preprint →Why this research matters now
The abstract identifies African genomic surveillance as relevant to understanding transmission and variant spread, and states that African countries should be included in global control efforts.
Structured evidence summary
Research question
The article examines how SARS-CoV-2 transmission and pandemic waves across Africa unfolded using viral genomic data.
Study design
The study curated and analyzed SARS-CoV-2 viral genomes collected during 2021 from several African countries, with genomic evidence used to describe earlier outbreaks and transmission patterns.
Population and setting
The setting was several countries across the African continent. The genomic dataset was collected in 2021 and the abstract also describes outbreaks occurring during 2020.
Main findings
The abstract reports that initial 2020 outbreaks in each African country were associated mainly with imported cases from Europe. It states that infections were likely substantially undercounted, later waves appeared more severe, and variants associated with high transmission spread within Africa.
Public-health relevance
The abstract identifies African genomic surveillance as relevant to understanding transmission and variant spread, and states that African countries should be included in global control efforts.
Important limitations
The abstract identifies patchy data as a challenge to tracking the pandemic across African countries. This summary is limited to the supplied single-article abstract and metadata; the original paper is required for decision-grade assessment of sampling coverage, analytic methods, and uncertainty.
GIDS interpretation
The article is discoverable in contexts involving genomic epidemiology, outbreak investigation, surveillance, and transmission dynamics of SARS-CoV-2 in Africa. This classification provides literature context only and does not establish or confirm a current surveillance signal.
Related GIDS surveillance
Literature context does not validate, explain, or change a surveillance signal. Exact and contextual relationships are shown separately.
Evidence relationships
This article has 10 auditable classifier relationships to diseases, places, topics, and study design.