Chiang Mai Covid Centre has announced that those who have visited high-risk pandemic places, according to the timeline of Chiang Mai COVID-19, between March 28th – April 4th, if you have registered for a COVID-19 test at Chiang Mai Neuropsychiatric Hospital, please go to have your tests between 9.30am – 5pm on the dates below. Numbers before 1,500 test on April 10th Numbers 1,501