Browsing by Subject "omicron BA.5"

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    Scenario projections for the spread of SARS-CoV-2 Omicron BA.4 and BA.5 subvariants in the US and Texas
    (2022-08) Bi, Kaiming; Bouchnita, Anass; Egbelowo, Oluwaseun F.; Fox, Spencer J.; Lachmann, Michael; Meyers, Lauren Ancel
    This report projects the spread and burden of the highly-transmissible SARS-CoV-2 Omicron BA.4 and BA.5 variants based on data through July 5, 2022. By that date, BA.4 and BA.5 were the predominant variants in the US and COVID-19 hospitalizations were increasing. Using a stochastic compartmental model that tracks population-level immunity derived from infections, primary vaccines, and booster vaccines, we project COVID-19 cases, hospitalizations, and deaths over a twelve month period for both the entire United States and the state of Texas. We simulate sixteen different scenarios in which we vary the transmission properties of the Omicron BA.4/BA.5 variants and the rate of SARS-CoV-2 vaccine booster uptake.