Clinical and upper airway characteristics of 3715 patients with the Omicron variant of SARS-Cov-2 in Changchun, China

• DOI: 10.1016/j.jiph.2023.01.013
• Publication Date: 2023-01-20T17:54:43Z
• Authors: Jichao Sha; Cuida Meng; Jing Sun; Liwei Sun; Rui Gu; Junzhi Liu; Xuewei Zhu; Dongdong Zhu
• Keywords: Throat

The spread of the novel SARS-Cov-2 variant Omicron created a challenging public health situation in number countries. In March 2022, emerged Changchun, China, and patients infected rapidly increased. prevalence infection symptoms differs from that Delta, with more upper airway clinical apparent. This study aimed to investigate characteristics variant.In this retrospective study, we collected data participants Changchun who had tested positive for quantitative polymerase chain reaction between 10 30 May 2022 using telephone interviews. questionnaire was designed by research team based on visual analogue scale. We also considered age, sex, vaccination status, general symptoms, cure period.A total 3715 (2056 males 1659 females) mild COVID-19 were included. mean age 38.63 ( ± 13.97) years (range 2-86 years). vaccine uptake rate 91.33 % (8.66 %, 4.58 65.33 21.43 received zero, one, two, three doses, respectively). incidence including throat nasal 54.21 %. Throat most common during (49.12 %). Nasal (20.08 lower 25.60 gastrointestinal 10.87 55.26 period ranged 37 days, 10.24 4.69 days. compared symptom severity among different statuses found no differences.The main are symptoms. Fever remains symptom, followed dry cough. There association vaccines, status might have been ineffective against Omicron.