What percentage of your population has antibodies from any source? In the USA, the majority of us now have antibodies from vaccination or past infection.
"More than 80% of Americans have coronavirus antibodies acquired through infection or vaccination, according to a new study of over 1.4 million blood donations across the U.S."
Irresponsible country was Latvia (EU country) who barely managed to vaccinate only half of its elderly so far. The government was completely inefficient, they did not even allowed to send a letter in Russian, in a country where nearly half of population are Russian speakers. Now they just had to reintroduce a strict lockdown for another month. I think they well deserved it.
Not gonna happen, sadly, as long as there are irresponsible neighbours like the UK, where I sadly happen to live (for my sins).