We compared the mortality risk in Alaska among persons with symptomatic coronavirus disease 2019 (COVID-19) during the period the Delta variant was predominant to the risk among those with symptomatic COVID-19 before Delta predominance. The Delta period was associated with 2.43-fold higher odds of death. Unvaccinated persons were 4.49 times more likely to die than fully vaccinated persons.
Keywords: B.1.617.2 (Delta); SARS-CoV-2; mortality; vaccination; virulence.
Published by Oxford University Press on behalf of Infectious Diseases Society of America 2022.