In the past week it’s been discovered that the virus has spread in two developed countries - South Korea and Italy. Already a bunch of countries have created travel restrictions and it’s only a matter of time until the restrictions increase. If a similar outbreak is discovered in the UK while you are there, you might become subject to similar restrictions. You’d be unlucky if it happened while you are there, but it wouldn’t be shocking. We’re trying to predict the policy response to an unknown future so it’s very hard to say.