Fig 1.
Maximum likelihood phylogenetic tree of the AY.25 SARS-CoV-2 genomes (n = 379) associated with the university outbreak, highlighting the clade-defining mutation (C18804T).
The Wuhan-1 genome was used as a reference (EPI_ISL_402125, NCBI: NC_045512.2) and SARS-CoV-2 genomes (publicly available through GISAID) of the AY.25 lineage in Arizona are shown for context.
Table 1.
Characteristics+ of university and community cases associated with the AY.25 outbreak, Arizona, August—December 2021.
Fig 2.
COVID-19 cases (N = 380) associated with AY.25 outbreak by original specimen collection date, Arizona, August—December 2021.