A (bird flu virus) can be in a country.Logical formLearned from35 sentences. Flu may spread.Logical formLearned from35 sentences. A person may get a (stomach flu).Logical formLearned from35 sentences. Symptoms can be constituted-of-or-filled-with avian flu.Logical formLearned from35 sentences. A virus may be knowned as flu.Logical formLearned from35 sentences. A (flu vaccine) can be injectable.Logical formLearned from35 sentences. A strain can be constituted-of-or-filled-with (bird flu virus).Logical formLearned from35 sentences. Fears can be about (bird flu).Logical formLearned from35 sentences. Fears can be over flu.Logical formLearned from35 sentences. An outbreak may pertain-to a (bird flu strain).Logical formLearned from35 sentences. A spread may pertain-to a (flu pandemic).Logical formLearned from34 sentences. An end can be to (bird flu).Logical formLearned from34 sentences. A (flu strain) can be virulent.Logical formLearned from34 sentences. A female may get a flu.Logical formLearned from34 sentences. Persons may have a flu.Logical formLearned from34 sentences.