Editorial | Fourth jab for elderly to be welcomed as Hong Kong virus battle goes on
- Covid-19 infections may be falling, but people are still dying, and an ever-vigilant city has to ensure immunisation remains a priority

But while daily infection numbers have dramatically fallen, they are still in their thousands. Figures for deaths remain stubbornly high. Vaccination, particularly with two jabs and then a booster shot, considerably lowers the risk of serious illness. Health Department statistics show that 96 per cent of the nearly 8,500 fatalities were aged 60 and older, the major reason since free vaccines were made available 14 months ago being failure to get immunised.
Immunity declines over time and increasing numbers of governments have launched programmes for second booster jabs for the elderly and those at risk. It is the best option until pharmaceutical companies including BioNTech, which has developed one of the two vaccines Hong Kong uses, have fully tested updated versions of their products that take into account variations of the virus. Authorities were quick to accept a recommendation by the city’s expert committee on the pandemic on Thursday that 60s and over should get another jab, as long as three months have elapsed since the third.
The Omicron strain moved at lightning speed around the world and Hong Kong was riven by an even more transmissible sub-variant that took a terrible toll among the elderly. Fortunately, early evidence shows that the higher the level of vaccination, the lower the risk of severe illness. But as much as pandemic-weary populations would wish the worst to be over, it is foolhardy to make such an assumption given how the disease mutates. Staying vigilant is a prerequisite, while ensuring people are immunised has to be the priority.
