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Introduction of the BA.2 lineage in the Philippines. The time-scaled tree was inferred by BEAST using BA.2 genomes isolated in the Philippines along with the genomes of early global BA.2 viruses. The estimated tMRCAs with 95 per cent HPD illustrated by the grey area are aligned with the phylogenetic tree. Tips are coloured according to the location of isolation. Red shades for viruses isolated in the Philippines indicate the three island groups in the country.
