Pfizer and BioNTech say updated Covid-19 boosters show increased immune response against Omicron variant
BioNTech can provide Covid-19 vaccine targeting Omicron to Hong Kong as early as the third quarter of the year if approved
BioNTech can provide Covid-19 vaccine targeting Omicron to Hong Kong as early as third quarter of the year if approved; city logs 1,685 cases