Chickens may die of (bird flu).Logical formLearned from17 sentences. (Bird flu) can be in a (poultry farm).Logical formLearned from17 sentences. A (bird flu virus) may undergo a discovery.Logical formLearned from17 sentences. A country may announce an outbreak of (bird flu).Logical formLearned from17 sentences. Forms can be constituted-of-or-filled-with flu.Logical formLearned from17 sentences. A form of a virus may cross with (flu strains).Logical formLearned from17 sentences. (Bird flu outbreaks) can be confirmed.Logical formLearned from17 sentences. A woman may test positive for (bird flu).Logical formLearned from17 sentences. (Flu vaccinations) can be seasonal.Logical formLearned from16 sentences. A country may confirm some (flu cases).Logical formLearned from16 sentences. An attack may pertain-to a flu.Logical formLearned from16 sentences. A fatality can be from flu.Logical formLearned from16 sentences. A (flu outbreak) can be in a country.Logical formLearned from16 sentences. A country may report a (bird flu case).Logical formLearned from16 sentences. A country may record some cases of (bird flu).Logical formLearned from16 sentences.