When Europe suspended the use of Astra Zeneca, Australia insisted the AZ shot was totally safe and there was no evidence of clotting problems.
Then they said there was evidence but it's too small an issue to justify not using it since it will do so much more good than harm. This has been their position for weeks.
Today: "Um, if you're under 50 you shouldn't take the Astra Zeneca shot. Take the Pfizer one instead."
Thank God there are experts we can rely on.