The new patients included eight Thai returnees and three foreigners.
The Thai nationals were seven women: two, aged 34 and 16, from Saudi Arabia; two, aged 28 and 29, from Myanmar; one, aged 43, from Portugal; and two, aged 28 and 30, from Bahrain. A male Thai national aged 33 came from Myanmar.
The foreigners included a Swedish, aged 54, a US national, aged 23, and a South Korean, 34.
As of Friday, the number of confirmed cases in Thailand had risen to 4,180 (1,192 in state quarantine). Of these, 217 are in hospital, 3,903 have recovered and been discharged, while 60 have died.
According to Worldometer, as of Friday the number of confirmed cases worldwide since the outbreak had risen to 70.71 million, 49.13 million of whom have recovered and 1.58 million have succumbed to the infection.
Thailand ranks 151st globally, while the US has the most cases with 16.03 million, followed by India (9.79 million), Brazil (6.78 million), Russia (2.56 million) and France (2.33 million).