Covmuller Covmuller is an R-package designed for analysis of SARS-CoV-2 sequencing metadata deposited on GISAID. Features Covmuller currently supports the following features: Read and preprocess metadata file downloaded from GISAID: Vignette Plot variant prevalence: Vignette Fit multinomial models to variant prevalence data: India USA Canada UK Australia SouthAfrica Estimate totals prevalence of variants by projecting case prevalence data on multinomila fits: India New York state New York City South Africa United Kingdom USA