BANGKOK — Thai health authorities say they’ll maintain strict coronavirus regulations imposed after a surge in cases last month in a province next to Bangkok.

Thailand had just 4,008 confirmed cases of the infection on Dec. 1. But after the surge — discovered among migrant workers and another among attendees of illegal gambling dens — spread to 60 of Thailand’s 77 provinces, the total increased to 11,262 on Thursday.

Taweesilp Visanuyothin, a spokesman for Thialand’s COVID-19 Situation Administration, said measures to combat the spread of the virus would be maintained at least until the end of January.

Restrictions vary by province according to the severity of the threat. Those include lockdown measures and mandated closures of public areas. Generally, monitoring and enforcement of social distancing has been stepped up, and events drawing crowds banned.