All the 15 new patients were asymptomatic, Dr Taweesin Visanuyothin, CCSA spokesman, said.
Four men had returned from Egypt and were found positive on August 5 -- there were five previous cases on the same flight -- 10 men had returned from Saudi Arabia and tested positive on July 25 -- there were two previous cases on the same flight -- and a 29-year-old freelancer who had returned from Japan was found positive on August 5.
As of August 7, the total number of confirmed cases in the country stood at 3,345 (300 in state quarantine) -- 139 are under treatment, 3,148 have recovered (96.11 per cent recovery rate) and been discharged, and there have been 58 deaths.
Globally, the total number of confirmed cases reached 19.2 million, up by 282,000 on Thursday, with 12.3 million recovered while deaths stood at 717,000. Thailand is 112th among countries with most number of cases; the US tops the list with 5 million, followed by Brazil (2.91 million) and India ( 2 million). The three countries account for half of the total global cases.