Save Share Western Australia has the ignominy of being the jurisdiction with the lowest vaccine take-up rate, a situation experts say is due to a mix of complacency and geography. Only 13 per cent of Western Australians have been fully vaccinated, about 2.4 percentage points behind NSW, which is battling through a massive outbreak, according to website covid19data.com.au. â[Whatâs] happening in Sydney could be happening in Perth in two weeksâ time,â Professor Peter Collignon says. Like his counterparts in the east, WA Premier Mark McGowan has rebuffed pleas by NSW for more Pfizer doses to help curb Sydneyâs growing outbreak.