They can’t be fired.
Their employer should have been honest about this.
Both articles seem to completely contradict themselves. This article essentially states that because it is a pandemic, then you can be fired. Your article states they can’t under federal law but fails to provide the law section. I am guessing BOTH are interpreting the law and unfortunately.... a long, civil suit will have to follow in order for the law to be cleared. During those years, the FDA will either approve or disapprove the vaccine but I personally think they will be pressured to approve it way sooner whether it is safe or not.