Bird flu (H5) has been discovered in Nankan, northern Kumamoto. About 50 chickens have died. According, in order to prevent the spread of the disease, the prefecture has decided to cull about 107,000 chickens within a 10 kilometer radius of the farm where the disease was discovered. The article doesn't say anything about the possibility of spread to humans but I assume that this aggressive response will significantly reduce that danger.
-- Kirk
http://www3.nhk.or.jp/news/html/20161227/k10010821041000.html
熊本・南関町でも 鳥インフルでニワトリ処分始まる | NHKニュース
熊本県南関町の養鶏場で26日、ニワトリが相次いで死んでいるのが見つかり、県が行った詳しい検査で「H5型」の鳥インフルエンザウイルスが検出され…