The government reported seven new cases of coronavirus disease on Friday, quarantined arrivals from four countries and including one person who has had it before.
The Centre for Covid-19 Situation Administration said the five Thais and two foreigners had arrived from Saudi Arabia, Bangladesh, Qatar and Pakistan.
Three Thais returned home from Saudi Arabia - two schoolgirls, aged 14 and 9, and a man aged 61.
The fourth was a 50-year-old male worker who arrived on Sept 5 on the same flight as eight previously confirmed cases. The man had earlier been infected with Covid-19 in July and recovered, the CCSA said.
From Qatar, a Thai male worker, 41, arrived on Sunday on the same flight as a previously confirmed case. He was asymptomatic.
A Bangladeshi man who arrived on Sept 2 from Dhaka was also asymptomatic.
The second new foreign case arrived from Pakistan on Sunday. The 10-year-old Pakistani boy was confirmed infected by the first test on Wednesday. He was also asymptomatic.
Total cases were now 3,497, of whom 3,328 (95%) had recovered and 111 others remained at hospitals. The death toll remained at 58 since June 2, the CCSA said.
