"The community cases have actually gone up since reaching 80 per cent coverage, in part because we're allowing more social events for those who are vaccinated and, I dare say, more fatigue at the control measures," Mr Cook told the ABC.
"One main lesson from across South-East Asia is that it is incredibly hard to prevent Delta's spread and, as Singapore shows, even high vaccination rates will not help that much,"
Singapore, like Australia, has also not yet opened COVID vaccinations up to children aged under 12.
Dr Leong said 80 per cent was "not good enough because it can still burden the hospital system very significantly and there will be too many excess deaths".
"The numbers are mind-boggling, given what's possible over the next few weeks," he said.
Prime Minister Scott Morrison set a vaccination target as part of his
four-step opening plan for Australia, with phase C triggered when double vaccination reached 80 per cent.
However,
Australia's threshold is actually lower because it is based on the population aged over 16.
Singapore's threshold is based on the total population.
https://www.abc.net.au/news/2021-09-...rmal/100450154