Clinical characteristics of COVID‐19 patients infected by the Omicron variants in Macao, China: A cross‐sectional study

The evolving mutants of SARS‐CoV‐2 have made the COVID‐19 pandemic sustained for over 3 years. In 2022, BA.4 and BA.5 were the Omicron variants dominating the spread globally. Although COVID‐19 was no longer a Public Health Emergency of International Concern (PHEIC) as announced by WHO, the SARS‐CoV‐2 variants remain a challenge to global healthcare under the circumstances of withdrawal and loosening of personal protective behavior in the post‐quarantine era. This study aims to acknowledge the clinical characteristics caused by Omicron BA.4/BA.5 in COVID‐19 naive people and analyze possible factors affecting disease severities.