COVID-19   rules are strictly enforced at Don Mueang International Airport in Bangkok, Thailand. (Reuters/File Photo)

The public health ministry will propose scrapping a quarantine waiver for vaccinated visitors and revert to hotel quarantine and a "sandbox" programme, which allows free movement in specific locations.

The first locally transmitted case was found in a Thai woman who tested positive to Omicron after contracting the virus from her husband, a Colombian who returned to Thailand from Nigeria in late November, a health ministry official told a daily briefing.

Both the husband and the wife had been fully vaccinated with the AstraZeneca vaccine, he said.