Myanmar has only reported a couple of scattered outbreaks of H5N1 in recent years, last reporting an outbreak in April of 2016 in the north central region of their country. Before that we have to go back to February of 2015, and prior to that to the summer of 2012.
Earlier this year, in OIE Notification: H5N6 Arrives In Myanmar, we learned - somewhat belatedly - that H5N6 had been detected in market birds sampled nearly a year earlier in Shan State, near the Chinese border.Today, however, Myanmar has notified the OIE of an outbreak of HPAI H5N1 in Dawei in the south-eastern part of the country, only about 40 miles from the Thai border. Affected are roughly 5000 Lohmann layers.
In it's epidemiological comments, the report cites: Lack of bio security of the farm and a small holder has an illegal processing place located in front of the farm.