So far so good. But there's nothing on the MAFF or, more properly, MHLW website to indicate that the government is doing anything about preparing for the human pandemic that will arise once the H5 or H7 viruses manage to make the mutative leap to easy human-to-human transmission. And if not the government, who else? (Actually, this article tells us that, in the US, the private sector at least is looking into the implications and making preparations.)
In Japan, this is a mainly a job for MHLW, but it must be coordinated across ministries at cabinet or sub-cabinet level. Residents of Japan should hope that the authorities prepare us well, and soon, for what looks like a high-probability event over the long run.
FYI, Eurasia Group has been on this case for some time. This year, EG lists the Top 7 Political Risks here for your downloading pleasure. Note that there is an overall document as well as an eighth, unnumbered PDF file on four critical long-term risks, and pandemic influenza is one of them.