Barely half of Australians between ages of 60 and 69 have received first dose Scott Morrison on Monday lauded the 8.25million doses so far administered But graph showed only 57.9 per cent of those aged 65-69 partially vaccinated More Australians in their 50s have received both doses than those in their 60s Official advice doubts the safety of AstraZeneca jab; linked to rare blood clots