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Volume 29, Number 4—April 2023
Research Letter

SARS-CoV-2 Omicron Replacement of Delta as Predominant Variant, Puerto Rico

Gilberto A. SantiagoComments to Author , Hannah R. Volkman, Betzabel Flores, Glenda L. González, Keyla N. Charriez, Limari Cora Huertas, Steven M. Van Belleghem, Vanessa Rivera-Amill, Chelsea Major, Candimar Colon, Rafael Tosado, Laura E. Adams, Melissa Marzán, Lorena Hernández, Iris Cardona, Eduardo O’Neill, Gabriela Paz-Bailey, Riccardo Papa, and Jorge L. Muñoz-Jordan
Author affiliations: Centers for Disease Control and Prevention, San Juan, Puerto Rico (G.A. Santiago, H.R. Volkman, B. Flores, G.L. González, K.N. Charriez, C. Major, C. Colon, R. Tosado, L.E. Adams, G. Paz-Bailey, J.L. Muñoz-Jordan); University of Puerto Rico Molecular Sciences and Research Center, San Juan (L.C. Huertas, S.M. Van Belleghem, R. Papa); Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico (V. Rivera-Amill); Puerto Rico Department of Health, San Juan (M. Marzán, L. Hernández, I. Cardona); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (E. O’Neill)

Main Article

Figure

Decline of SARS-CoV-2 Delta variant and emergence of Omicron sublineages BA.1 and BA.2, illustrated by time-calibrated phylogenetic tree inferred with ncov augur/auspice workflow to represent the molecular evolution of the Delta variant in Puerto Rico since October 1, 2021, and subsequent expansion of the Omicron variant through May 30, 2022. Taxa labels are color-coded by geographic region of sampling to present the phylogenetic relatedness of viruses from Puerto Rico (dark blue) to viruses from the United States (light blue) and other regions of the world.

Figure. Decline of SARS-CoV-2 Delta variant and emergence of Omicron sublineages BA.1 and BA.2, illustrated by time-calibrated phylogenetic tree inferred with ncov augur/auspice workflow to represent the molecular evolution of the Delta variant in Puerto Rico since October 1, 2021, and subsequent expansion of the Omicron variant through May 30, 2022. Taxa labels are color-coded by geographic region of sampling to present the phylogenetic relatedness of viruses from Puerto Rico (dark blue) to viruses from the United States (light blue) and other regions of the world.

Main Article

Page created: February 10, 2023
Page updated: March 21, 2023
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