SARS-CoV-2 Sequence Analysis during COVID-19 Case Surge, Liberia, 2021

In June 2021, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) cases surged in Liberia. SARS-CoV-2 sequences from patients hospitalized during March-July 2021 revealed the Delta variant was in Liberia in early March and was dominant in June, irrespective of geography. Mutations and deletions suggest multiple SARS-CoV-2 Delta variant introductions.

Automated summary

In June 2021, a surge of SARS-CoV-2 cases, particularly the Delta variant, was observed in Liberia. Genetic sequencing of the virus from patients hospitalized between March and July 2021 revealed that the Delta variant was present in Liberia as early as March and became dominant by June, with evidence of multiple introductions.