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中缅边境国境线长达503km,无天然或人为的屏障。德宏州为祖国西南边陲,畹町是中国通往南亚的大门,边民往来频繁。鼠疫流行从何时开始尚无史料可查。缅甸官方公认从1898年至今都有人鼠
The boundary between China and Myanmar is as long as 503 km and there is no natural or man-made barrier. Dehong Prefecture is the southwestern border of the motherland, and the town is the gateway to China in South Asia. Since when the plague epidemic was still unpredictable Burmese officials have acknowledged that since 1898 there have been rats