Our study (NCT04800133) aimed to determine the safety and immunogenicity in patients with IEIs receiving a 3-dose primary series of mRNA vaccine BNT16...Read more

The high effectiveness of the third dose of BNT162b2 in healthy adolescents against Omicron BA.1 has been reported in some studies, but immune respons...Read more

Hong Kong experienced a surge of Omicron BA.2 infections in early 2022, resulting in one of the highest per-capita death rates of COVID-19. The outbre...Read more

We studied 2780 adults in Hong Kong who received CoronaVac inactivated virus vaccine (Sinovac) and BNT162b2 mRNA vaccine (“Comirnaty”, BioNTech/Fosun ...Read more

Background: Omicron subvariant BA.2 circulation is rapidly increasing globally. Aim: We evaluated the neutralising antibody response from vaccination ...Read more

A study by HKUMed and CU Medicine shows that a third dose of Comirnaty vaccine given to those who received two doses of either Comirnaty or CoronaVac ...Read more

SARS-CoV-2 infection of children leads to a mild illness and the immunological differences with adults are unclear. Here, we report SARS-CoV-2 specifi...Read more

The Department of Paediatrics and Adolescent Medicine and School of Public Health at HKUMed are now launching the COVID-19 Vaccination in Adolescents ...Read more

We administered BNT162b2 as a third dose to 314 adults aged ≥30 years who had previously received 2 doses of inactivated vaccine. We collected blood s...Read more

Introduction: Two doses of inactivated SARS-CoV-2 vaccine CoronaVac cannot elicit high efficacy against symptomatic COVID-19, especially against the O...Read more

The mRNA-based BNT162b2 and inactivated whole-virus CoronaVac are two widely used COVID-19 vaccines that confer immune protection to healthy individua...Read more

An international research team from the University of Hong Kong, the Laboratory of Data Discovery for Health, and the Centre for Immunology & Infectio...Read more

A joint study by HKUMed and CU Medicine reveals that Omicron variant significantly reduces the virus neutralisation ability of Pfizer BioNTech vaccine...Read more

A study by the LKS Faculty of Medicine, The University of Hong Kong (HKUMed) and the Faculty of Medicine, The Chinese University of Hong Kong (CU Medi...Read more

The antibody response magnitude and kinetics may impact clinical severity, serological diagnosis and long-term protection of COVID-19, which may play ...Read more

Background: Limited data exist on antibody responses to mixed vaccination strategies that involve inactivated coronavirus disease 2019 (COVID-19) vacc...Read more

Background: The duration of immunity in SARS-CoV-2 infected people remains unclear. Neutralizing antibody responses are the best available correlate o...Read more

We investigated 68 respiratory specimens from 35 coronavirus disease patients in Hong Kong, of whom 32 had mild disease. We found that severe acute re...Read more

Background: A novel coronavirus of zoonotic origin (2019-nCoV) has recently been identified in patients with acute respiratory disease. This virus is ...Read more