A chicken may be infected with (bird flu).Logical formLearned from10 sentences. (Bird flu) may arrive in a country.Logical formLearned from10 sentences. (Flu epidemics) can be global.Logical formLearned from10 sentences. Flu can be unpredictable.Logical formLearned from10 sentences. Millions can be constituted-of-or-filled-with (flu shots).Logical formLearned from10 sentences. An avian flu can be a strain.Logical formLearned from10 sentences. Flu can be in persons.Logical formLearned from10 sentences. A bit may pertain-to a flu.Logical formLearned from10 sentences. A (bird flu) may trigger one.Logical formLearned from10 sentences. A country may confirm an outbreak of (bird flu).Logical formLearned from10 sentences. A world-city may report a case of flu.Logical formLearned from10 sentences. A (h5n1 bird flu virus) can be virulent.Logical formLearned from10 sentences. A threat can be constituted-of-or-filled-with (bird flu).Logical formLearned from10 sentences. Preparation can be for a (flu pandemic).Logical formLearned from10 sentences. A (flu outbreak) may occur.Logical formLearned from10 sentences.