Traveling with the Flu
At present WHO does not recommend any travel restrictions. For current recommendations: http://www.who.int/csr/disease/avian_influenza/travel2005_11_3/en/index.html
CDC advice before, during and after travel
http://www.cdc.gov/travel/other/avian_influenza_se_asia_2005.htm
State Department International Travel Information
http://travel.state.gov/travel/cis_pa_tw/cis_pa_tw_1168.html