The government has asked South Korea to help monitor Thai workers for 14 days before they return to Thailand to ensure they are free of the coronavirus.
Government spokeswoman Narumon Pinyosinwat said on Friday that Prime Minister Prayut Chan-o-cha made the request so Thai workers seeking to return home would be safe and treated if they are infected.
Foreign Minister Don Pramudwinai phoned his South Korean counterpart Kang Kyung-wha to discuss the measure and South Korea had agreed to help, Mrs Narumon said.
According to the spokeswoman, Thai workers will stay in South Korea for 14 days before their return so that Korean officials can monitor their conditions. Health officials believe two weeks are a safe period to ensure a person is not infected.
The monitoring in South Korea is among the three measures the Thai government has requested from the country.
Another measure is for South Korea to screen all air passengers before their departure to Thailand. The other is for Korean immigration police to gather the profiles of Thai workers bound for Thailand.
"The South Korean government promised to take good care of Thai people there. Those who are sick will be treated until they are fully recovered," Mrs Narumon said.
She said the prime minister was confident the measures would help ease Thais' concern about a possible local outbreak caused by this group.
Many Thais feel uncomfortable after media reported cases of apparent self-quarantine breaches among the group although they have yet to confirmed by authorities.
One returnee from Korea was found to have dined with her family at a grill restaurant in Chiang Rai province and posted photos on Facebook. Some who have just returned from Japan were seen shopping at large Bangkok malls while others recently returning from South Korea dined at a large sukiyaki restaurant. The news reportedly forced the operators to take drastic actions of closing the malls and eateries for a few days for disinfection and quarantining their staff for 14 days.