Coronavirus: more than 20,000 Hongkongers could be hidden carriers of Covid-19, study shows
- Chinese University research estimates a rate of two hidden patients for every confirmed infection in city
- Another study of recipients of Sinovac and BioNTech vaccines shows all developed antibodies with no serious reactions
Academics from the faculty of medicine at Chinese University also revealed on Wednesday that another study showed 100 per cent positive antibody response for all participants who received either the Chinese-made Sinovac or German-produced BioNTech vaccine, with none developing serious adverse reactions.
“This should offer some good news to Hongkongers who may still harbour doubts about getting vaccinated,” Professor Paul Chan Kay-sheung, chair of CUHK’s department of microbiology, told a press conference.
“Given the uncertain development of the epidemic in neighbouring areas of Hong Kong, and the emerging new strains, we are calling on citizens to get vaccinated as early as they can.”
In the first study, researchers recruited 4,198 Hongkongers between April last year and this year after the city weathered four major waves of Covid-19, and found six – four men and two women – carried the immunoglobulin G (IgG) antibody in their systems, a sign of previous infection.