Epidemiological Characterization of Patients in the First Eight Weeks Following Detection of SARS-CoV-2 B.1.1.529 (omicron) Variant in Cuba.

Introduction: In November 2021, omicron-a new SARS-CoV-2 variant-was identified in South Africa and almost immediately, WHO declared it a 'variant of concern'. In view of its rapid worldwide spread and its imminent introduction in Cuba, genomic surveillance was strengthened.

Objective: Describe cases during the first eight epidemiological weeks (epiweeks) of SARS-CoV-2 infection attributable to omicron variant in Cuba by clinical and epidemiological variables.