The government on Wednesday reported there were no new cases of the coronavirus disease (Covid-19) and the country has been free of local infection for 23 days.

Dr Taweesilp Visanuyothin, spokesman of the Centre for Covid-19 Situation Administration, said there were no new cases among local people or quarantined returnees.

"We have been free of local infection for 23 days. Academics say the ideal infection-free period is twice the 14-day period, which is 28 days.

"Please keep using face masks in order to make the record good for Thailand and the world," he said.

The total Covid-19 cases remained unchanged at 3,135, 2,996 (95.57%) of whom had recovered. Eighty-one patients were at hospitals. The death toll was again unchanged, at 58.

Dr Taweesilp said 41,345 returnees had been quarantined and 198 of them were found infected. At present, 10,285 remained at quarantine facilities. 

Despite there being no new cases, the spokesman warned that the government still needed public cooperation in using the Thai Chana check-in and checkout app, which would help quickly trace patients if infection recurs.

Only 197,381 shops out of about 1 million nationwide had registered to use of the mobile app, and only 333,919 people were using it, he said.

Global Covid-19 cases in 211 countries totalled 8.26 million, up by 144,206 in the previous 24 hours, with 445,986 deaths, up by 6,901. About 52% of the total cases had already recovered.