Police escorted five ambulances carrying the Myanmar migrants from Songkhla immigration detention centre to Hat Yai hospital on Monday (April 27).
They were among 42 confirmed cases discovered on Saturday at the centre in the southern border province. Thirty-six remain at the detention centre.
On Sunday, a pregnant woman was sent from the detention centre to Songklanagarind Hospital after her condition worsened. Health officials said they are monitoring the remaining cases at the centre and would send them to hospital if their symptoms worsened.