Omicron-BA.1 Dispersion Rates in Mexico Varied According to the Regional Epidemic Patterns and the Diversity of Local Delta Subvariants.
Selene ZarateBlanca Itzel Taboada-RamírezMauricio Rosales-RiveraRodrigo García-LópezJosé Esteban Muñoz-MedinaAlejandro Sánchez-FloresAlfredo Herrera-EstrellaBruno Gómez-GilNelly Selem MojicaAngel Gustavo Salas-LaisJoel Armando Vazquez-PerezDavid Alejandro Cabrera GaytánLarissa Fernandes-MatanoLuis Antonio Uribe-NoguezJuan Bautista Chale-DzulBrenda Irasema Maldonado MezaFidencio Mejía-NepomucenoRogelio Pérez-PadillaRosa María Gutiérrez-RíosAntonio LozaBenjamin RocheSusana LópezCarlos F AriasPublished in: Viruses (2023)
Viral diversity and the relative abundance of the virus in a particular area around the time of the introduction of a new lineage seem to have influenced the spread dynamics, in addition to population density. Nonetheless, if there is a significant difference in the fitness of the variants, or if the time allowed for the competition is sufficiently long, it seems the fitter virus will eventually become dominant, as observed in the eventual dominance of the BA.1.x variant in Mexico.