[lvlrsSTI]

What puzzles me is that most countries already locked down or reject Indians, but why Delta variant is in every continent and most wide spread...

The US never lock down, you can go visit the US even if you are not vaccinated, bo quarantined is needed, it’s a free country, freedom of passing viruses, freedom of not wearing masks.  As for the UK, there are large number of South Asians there, no wonder daily cases keep going up to 38-42k level despite more than 50% people are fully vaccinated with AZ, their lockdown has been lifted last week even though things are getting out of control, people celebrated in bars, night clubs and streets.