Vaccine hesitancy puts Asia’s ‘zero-Covid’ economies like Hong Kong, Australia in herd immunity stalemate

• While jabbed-up Europe prepares to open its borders, public reluctance towards Covid-19 shots is so great in zero-tolerance places like Australia, Hong Kong and Taiwan it puts in doubt their ability to reach the threshold
• Incentives are needed if these places are to avoid becoming isolated from the rest of the world, experts say