Emerging Infectious Diseases (Apr 2023)
SARS-CoV-2 Omicron Replacement of Delta as Predominant Variant, Puerto Rico
Abstract
We reconstructed the SARS-CoV-2 epidemic caused by Omicron variant in Puerto Rico by sampling genomes collected during October 2021–May 2022. Our study revealed that Omicron BA.1 emerged and replaced Delta as the predominant variant in December 2021. Increased transmission rates and a dynamic landscape of Omicron sublineage infections followed.
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