Coronavirus: calls to make mainland China visitors in Hong Kong pay for Covid jabs after online posts detail ways to get free shots in city

• Users of Xiaohongshu, a Chinese Instagram-like social e-commerce platform, recently put up posts showing mainland residents ways to get Covid-19 shots in Hong Kong
• Without giving details, China distributor of BioNTech vaccines says mainlanders can make appointments online to get bivalent shots once border reopens