After reading the briefing sheet from the FDA I cannot see how QF will ever enforce this in court in the short term. How can something that is not officially approved for use be made compulsory for employment? Not to mention all the possible risks. And yes I am vaccinated however I could certainly understand why you might want to wait for a while. Also begs the question why you need to declare your medical history to your employer to just keep your job. QF are also running the risk of being sued by someone who has a weird reaction and loses their class 1. But I guess that is still cheaper than bankrupting an airline which is where they are coming from on this.