

Professor KK Cheng
Total 2 Posts
Are ‘immunity passports’ a good idea?
5 min read
Vaccinated people may still transmit infection, and we need to gather evidence after the Covid-19 vaccines are rolled out to measure if vaccines can confer sterilising immunity and eliminate transmission.
Coronavirus — Dangerous to suggest that we should bin the ‘rule of six’.
4 min read
The ‘rule of six’ is an attempt to halt the virus and to simplify instructions. Yet some in the media are calling for it to be abolished without valid arguments.