Tropism, replication competence, and innate immune responses of the coronavirus SARS-CoV-2 in human respiratory tract and conjunctiva: an analysis in ex-vivo and in-vitro cultures
Kenrie P Y Hui, PhD
Man-Chun Cheung, MSc
Ranawaka A P M Perera, PhD
Ka-Chun Ng, BSc
Christine H T Bui, PhD
John C W Ho, PhD
Published:May 07, 2020DOI:https://doi.org/10.1016/S2213-2600(20)30193-4
Background
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in December 2019, causing a respiratory disease (coronavirus disease 2019, COVID-19) of varying severity in Wuhan, China, and subsequently leading to a pandemic. The transmissibility and pathogenesis of SARS-CoV-2 remain poorly understood. We evaluate its tissue and cellular tropism in human respiratory tract, conjunctiva, and innate immune responses in comparison with other coronavirus and influenza virus to provide insights into COVID-19 pathogenesis.