(Bird flu) may undergo a monitoring.Logical formLearned from34 sentences. A flu can be in a country.Logical formLearned from33 sentences. Avian flu may undergo a prevention.Logical formLearned from33 sentences. A person may suffer from a flu.Logical formLearned from33 sentences. A country may be hited by (bird flu).Logical formLearned from33 sentences. A case may pertain-to a (stomach flu).Logical formLearned from33 sentences. Preparations can be for a (flu pandemic).Logical formLearned from33 sentences. A (flu pandemic) can be threatened.Logical formLearned from33 sentences. A (bird flu situation) can be in a country.Logical formLearned from33 sentences. A (flu epidemic) can be worldwide.Logical formLearned from33 sentences. An impact may pertain-to a flu.Logical formLearned from33 sentences. Avian flu can be in birds.Logical formLearned from33 sentences. A (bird flu outbreak) can be in a country.Logical formLearned from33 sentences. A virus may cross with (flu strains).Logical formLearned from33 sentences. A girl may die from (bird flu).Logical formLearned from33 sentences.