tetano
Editor, Senior Moderator
Ann Clin Epidemiol
. 2023 Apr 1;5(2):31-36.
doi: 10.37737/ace.23005. eCollection 2023. The disease severity of COVID-19 caused by Omicron variants: A brief review
Kohei Uemura[SUP] 1 [/SUP], Takumi Kanata[SUP] 1 [/SUP], Sachiko Ono[SUP] 2 [/SUP], Nobuaki Michihata[SUP] 3 [/SUP], Hideo Yasunaga[SUP] 4 [/SUP]
Affiliations
The Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in November 2021 and spread worldwide. This review summarizes the reported mortality and morbidity rates of coronavirus disease (COVID-19) caused by Omicron variants. In 21 previous studies, the mortality of patients infected with Omicron variants ranged from 0.01 to 13.1%, whereas that of those infected with previous variants was from 0.08% to 29.1%. The proportions of intensive care unit admissions and mechanical ventilation were lower for Omicron variants than for the previous variants. Future studies should clarify the mechanisms of transmissibility and severity of COVID-19 caused by the Omicron variants.
Keywords: COVID-19; Omicron variant.
. 2023 Apr 1;5(2):31-36.
doi: 10.37737/ace.23005. eCollection 2023. The disease severity of COVID-19 caused by Omicron variants: A brief review
Kohei Uemura[SUP] 1 [/SUP], Takumi Kanata[SUP] 1 [/SUP], Sachiko Ono[SUP] 2 [/SUP], Nobuaki Michihata[SUP] 3 [/SUP], Hideo Yasunaga[SUP] 4 [/SUP]
Affiliations
- PMID: 38505732
- PMCID: PMC10944996
- DOI: 10.37737/ace.23005
The Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in November 2021 and spread worldwide. This review summarizes the reported mortality and morbidity rates of coronavirus disease (COVID-19) caused by Omicron variants. In 21 previous studies, the mortality of patients infected with Omicron variants ranged from 0.01 to 13.1%, whereas that of those infected with previous variants was from 0.08% to 29.1%. The proportions of intensive care unit admissions and mechanical ventilation were lower for Omicron variants than for the previous variants. Future studies should clarify the mechanisms of transmissibility and severity of COVID-19 caused by the Omicron variants.
Keywords: COVID-19; Omicron variant.