Almost certainly, but it's not been subject to clinical trials so it's only an "almost". There are some trials underway, but they won't be reporting for a while.So with all the news about getting different stock in how does it work for the second jab? If your first was AZ is it okay for the second to be Moderna?
That said, I'd be surprised if the second doses of AZ actually get delayed, and even if it happens it'll only be by a week or so. Still within the window that the regulators are happy with.