The 12 boys and their soccer coach rescued from inside a flooded Thai cave lost an average of 2 kg during their 17-day ordeal but were generally in good condition and showed no signs of stress, a senior health official said.
Thais reacted with relief and exhilaration after the last group of the soccer team was rescued from the cave on Tuesday night, ending an ordeal that gripped Thailand and the world.
They were taken by helicopter to hospital to join their team mates in quarantine for the time being.
"From our assessment, they are in good condition and not stressed. The children were well taken care of in the cave. Most of the boys lost an average of 2 kg," Thongchai Lertwilairattanapong, an inspector for Thailand's health department, said.
Parents of the first four boys freed on Sunday have been able to visit them but had to wear protective suits and stand 2 metres away as a precaution.
Thongchai said one from the last group rescued on Tuesday had a lung infection and they were all were given vaccinations for rabies and tetanus.
The group ventured into the vast cave complex in northern Thailand after soccer practice on June 23.
Rescue mission chief Narongsak Osottanakorn thanked people in Thailand and from around the world soon after the final rescues were completed.
And a senior Australian police officer acknowledged the degree of international cooperation "in a very unfriendly environment".
"It is amazing what the human being can do. There are extraordinary people doing extraordinary things," Glenn McEwan, the Australian Federal Police's Asia manager, said.
The drama in Thailand has even resonated as far as Russia, where soccer's World Cup is reaching its final stages.
Players from France and England welcomed news of the rescue and sent their best wishes to the team on Twitter.
"This victory goes to the heroes of the day, well done boys, you are so strong," French midfielder Paul Pogba tweeted after his team beat Belgium 1-0 overnight to reach the final.
Manchester City and England defender Kyle Walker, whose team faces Croatia in the second semi-final later on Wednesday, said he wanted to send shirts to the boys.
"Amazing news that all of the Thai kids are out of the cave safely!" Walker tweeted.
Australian Prime Minister Malcolm Turnbull praised the courage of the multinational rescue team, which was run by the Thai military, as "one of the most heroic and inspiring episodes of our time".
"It's hard to imagine anything more frightening than being trapped underground in the dark, let alone having your children trapped underground in the dark," Turnbull said.