Minister of Health Mam Bun Heng has issued guidelines determining six groups of people who need to have their samples taken for Covid-19 testing.

In a letter sent to municipal and provincial governors on April 10, Bun Heng said the guidelines are not only key to preventing a further spread of Covid-19 amid the ongoing community outbreak, but would also ease the burden on the Kingdom's laboratories which were being overwhelmed with a sudden, huge surge in cases.

«The first group are people crossing the border who are symptomatic or those who return from a neighbouring country' high-risk province.

"Second are those who have been in direct contact with a Covid-19 positive person or a person suspected of being infected with the disease.

«Third are those suspected of carrying the disease themselves. Fourth are those from areas determined by health authorities to be of high risks.

"Fifth are patients diagnosed with pneumonia who are under ongoing treatment. And sixth are those who are under health monitoring by the health ministry," Bun Heng said in the letter.

Besides the six groups, Bun Heng said migrants who have been exposed to Covid-19 in low-risk areas are required to self-isolate at home under the monitoring of the authorities or at quarantine site designated by the authorities, and are subject to a one-off Covid-19 test on the 13th day of their quarantine.