Carrie Lam invokes emergency powers in delaying Hong Kong elections : worldnews

Many countries, like South Korea, have held successful elections with much higher infection numbers without any new cases related to the election.

wear masks
wear gloves
line up with 2m distance from each other
extend voting timeslots
different booth for sick people
temperature check
The solutions are present but the gov chose to ignore them, The whole thing is a political move to suppress the opposition.