Predictive factors of delayed viral clearance of asymptomatic omicron-related COVID-19 screened positive in cancer patients receiving active anti-cancer treatment

On November 26, 2021, the omicron (B.1.1.529) variant of SARS-CoV-2 was first identified in South Africa and Botswana as a highly transmissible variant of concern and was subsequently the cause of a pandemic surge in Europe, the USA, and Asia in late 2021 to early 2022 [1]. The fifth wave of the pandemic of COVID-19 in Hong Kong, primarily attributed to the omicron variant and subvariants (BA.2, BA.4, and BA.5) started in early January 2022 and resulted in widespread transmission at warp speed since then.

Source: International Journal of Infectious Diseases - April 15, 2023 Category: Infectious Diseases Authors: Victor Ho-Fun Lee, Sik-Kwan Chan, Yiu-Ho Tam, Tin-Ching Chau, Jasper Fuk Woo Chan, Sum-Yin Chan, Chun-Yat Ip, Horace Cheuk-Wai Choi, Sherry Chor-Yi Ng, Kwok Keung Yuen Source Type: research