Genomic sequencing of SARS-CoV-2 in Rwanda reveals the importance of incoming travelers on lineage diversity.
Nat Commun
; 12(1): 5705, 2021 09 29.
Article
in En
| MEDLINE
| ID: mdl-34588460
ABSTRACT
COVID-19 transmission rates are often linked to locally circulating strains of SARS-CoV-2. Here we describe 203 SARS-CoV-2 whole genome sequences analyzed from strains circulating in Rwanda from May 2020 to February 2021. In particular, we report a shift in variant distribution towards the emerging sub-lineage A.23.1 that is currently dominating. Furthermore, we report the detection of the first Rwandan cases of the B.1.1.7 and B.1.351 variants of concern among incoming travelers tested at Kigali International Airport. To assess the importance of viral introductions from neighboring countries and local transmission, we exploit available individual travel history metadata to inform spatio-temporal phylogeographic inference, enabling us to take into account infections from unsampled locations. We uncover an important role of neighboring countries in seeding introductions into Rwanda, including those from which no genomic sequences were available. Our results highlight the importance of systematic genomic surveillance and regional collaborations for a durable response towards combating COVID-19.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Genome, Viral
/
Travel-Related Illness
/
SARS-CoV-2
/
COVID-19
Type of study:
Diagnostic_studies
/
Screening_studies
Limits:
Adult
/
Female
/
Humans
/
Male
Country/Region as subject:
Africa
Language:
En
Journal:
Nat Commun
Journal subject:
BIOLOGIA
/
CIENCIA
Year:
2021
Document type:
Article
Affiliation country:
Ruanda