Certain factors can increase your risk of developing angioedema. These include: a previous occurrence of angioedema or hives; a previous allergic reaction; a family history of angioedema or hives; sudden temperature changes; stress or anxiety; injury
Warner Bros. Pictures announced in September 2013 that J. K. Rowling would be making her screenwriting debut with the first of a planned series of films based upon Fantastic Beasts and Where to Find Them, part of an expanded creative partnership with Rowling.
More specifically, looking at the Fantastic Beasts timeline vs the Harry Potter timeline, things start to seem a lot clearer. Fantastic Beasts and Where to Find Them takes place a little over 60 years before the Harry Potter saga begins, and 54 years before Harry is even born. When the film begins in 1926, Harry, Ron, and Hermione aren't even ideas, and even Professor McGonagall hasn't yet been born.