A nation may be hited by (bird flu).Logical formLearned from19 sentences. (Bird flu) can be among chickens.Logical formLearned from19 sentences. A strain of (bird flu) may kill.Logical formLearned from19 sentences. (Bird flu outbreaks) can be in a continent.Logical formLearned from19 sentences. (Bird flu) may be reported.Logical formLearned from19 sentences. Tests may confirm presence of a strain of (bird flu).Logical formLearned from19 sentences. An international conference can be on (bird flu).Logical formLearned from19 sentences. A woman may have flu.Logical formLearned from19 sentences. (Bird flu outbreaks) can be in a country.Logical formLearned from19 sentences. A (bird flu crisis) may undergo handling.Logical formLearned from19 sentences. A strain of (bird flu) may be killed.Logical formLearned from19 sentences. (Bird flu) may undergo a confirmation.Logical formLearned from19 sentences. A surface may pertain-to a (flu virus).Logical formLearned from19 sentences. A (bird flu victim) may pertain-to a country.Logical formLearned from19 sentences. A form may trigger a (flu pandemic).Logical formLearned from19 sentences.