Age group	Proportion of total population*	Infection fatality rate†	Number of deaths if 0.5 million infected	Proportion of deaths
0–9 years	12.56%	0.002%	1	< 1%
10–19 years	12.05%	0.007%	4	<1%
20–29 years	14.45%	0.031%	22	<1%
30–39 years	14.48%	0·084%	61	1%
40– 49 years	12.91%	0.161%	104	2%
50–59 years	12.14%	0.595%	361	8%
60–69 years	10.30%	1.930%	994	28%
70–79 years	7.06%	4.280%	1511	33%
≥ 80 years	4.02%	7.800%	1568	34%

^*Australian population data from Australian Bureau of Statistics. ²

^†Infection fatality rates from Verity et al. ¹