Even before the mutant virus, Spain was insisting on PCR Test with certification. Granddaughter at uni in England had to get one before flying to Spain to be with her family. It was going to cost £250, though in Spain it costs 25E. (She managed to get flight to Spain about 6 hours before they banned all flights).
It seems a sensible idea for all countries...though it would need to be cheaper.
WORDS OF 7 LETTERS two changes allowed (renewed)
Parents-in-Law. What do/did you call them?