Get ready to scroll: three graphs to help you make sense of the AstraZeneca vaccine risk

When our brains evolved we didn't have to grapple with risks this small. So we struggle to make sense of them

Last week's announcement that the AstraZeneca Covid vaccine would now only be recommended for Australians over 60 has highlighted the many ways we think about risk.

The decision reflects a greater understanding of the real, but extremely low, risk of the clotting disorder called thrombosis with thrombocytopenia for people aged 50 to 59, who are now recommended to have the Pfizer vaccine.