I just came here to see if this was posted, and what the explanation could be. I'm not a big twitter user or really up on all the debate about this, and even I noticed just how bizarre this headline was.
I agree, it made it confusing about whether people outside those categories were safe or not, as it sounded so specific. It also made me wonder about people on the pill, given that is a realistic cause for concern at the moment. They don't 'experience menstruation', nor are they post-menopausal, so are they are risk? I don't have many periods any more, but am not post-menopausal, so is that a problem? What about women who aren't regular? Younger girls (ok, probably not likely to be having the vaccine yet, but it sounds like it could be dangerous from this article!)? Men?
How can they specifically pick out those two categories, 'experiencing menstruation' or 'post menopausal', and not realise that it makes it sounds like all the rest of women are excluded from being safe? Or if they are just trying to say 'all women', then, well... just say it!