So HK is proposing reduced quarantine for the vaccinated. The issue is that vaccination is not that dissimilar to natural immunity: partial and temporary, but massively reducing severity. The immune will likely experience future infections /1 https://www.scmp.com/week-asia/health-environment/article/3132633/west-races-back-travel-zero-covid-economies-hong-kong

as mild, but the viruses they carry are not changed, making those virus particles just as dangerous to completely naive individuals as the virus particles from more severe cases. Whether a given policy is right for HK or not I don’t know, but the confused messaging /2

we’ve had from so many quarters about vaccine derived immunity being special certainly won’t help the public in evaluating future risks and benefits. 3/3