Fig. 4
From: Genomic surveillance of SARS-CoV-2 variants using pooled WGS

Temporal Trends in WHO COVID-19 Variant Prevalence Through Simulated Pooled NGS Data. This figure shows estimated fractions of WHO-recognized COVID-19 variants from simulated pooled NGS, including Lambda, Mu, Omicron, GH/490R, Iota, Kappa, Epsilon, Eta, Gamma, Alpha, Beta, Delta, and Zeta. The simulation spans several months, illustrating the dynamic shifts in variant prevalence. Each variant’s estimated fraction is plotted over time, highlighting the changing landscape of COVID-19 variants.