The government on Friday reported three new cases of Covid-19, all quarantined returnees and including two who previously had the disease.
The Centre for Covid-19 Situation Administration said the first test on a 58-year-old Thai worker returning from Kuwait on Tuesday tested positive.
The man had Covid-19 in Kuwait, had been treated at a local hospital and later rested at a workers' camp until his return.
A male worker aged 42 who arrived from Singapore on Sept 18 was quarantined in Chon Buri.
The man had earlier caught Covid-19 in Singapore. He was not hospitalised but had been put in isolated quarantine. Singapore authorities reported the man had passed his disease transmission period on June 11.
The third case was from the US, a housemaid aged 42 who arrived last Saturday and was quarantined in Chon Buri.
Her first test on Wednesday was positive, but she was asymptomatic.
Infection rates were 8.09% among returnees from Kuwait, 2.93% from Singapore and 9.64% from the US.
Global Covid-19 cases rose by 314,855 in 24 hours to 32.41 million while the worldwide death toll was up by 5,872 to 987,724.
