Leo LM Poon2 articles listing Leo LM Poon in Nature Communications, indexed by Paperzzz from Crossref and OSF.SARS-CoV-2 Omicron BA.2.86 and JN.1 expand tropism in human proximal intestinal epithelium Nature CommunicationsSARS-CoV-2 antibody responses in children exhibit higher FcR engagement and avidity than in adults Nature Communications