Just when you think it's getting boring in coronavirus land, you're hit with an avalanche of news.

Sydney is continuing to battle an outbreak of COVID-19, as health detectives narrow in on where it might have come from.

And Australia's medicines regulator has revealed five more people have developed blood clots after receiving the AstraZeneca vaccine, bringing the total to 11 from around 1.4 million doses since the rollout began.

So what have we learned about the variant circulating in Sydney? And what's the current likelihood of developing a clot?