UK to quarantine arrivals by air

- at the end of this month: https://www.bbc.co.uk/news/business-52594023;

ten weeks after New Zealand: https://www.nzherald.co.nz/nz/news/article.cfm; and

five months after Taiwan imposed basic checks on all arrivals:
https://www.nbcnews.com/news/world/taiwanese-authorities-stay-vigilant-virus-crisis-eases-n1188781