Some outbreaks can be constituted-of-or-filled-with avian flu.Logical formLearned from28 sentences. A male may have (bird flu).Logical formLearned from28 sentences. Developments can be on avian flu.Logical formLearned from28 sentences. (Bird flu) may hit a country.Logical formLearned from28 sentences. Outbreaks may pertain-to a (bird flu virus).Logical formLearned from28 sentences. A flu can be heavy.Logical formLearned from28 sentences. Some case can be constituted-of-or-filled-with (bird flu).Logical formLearned from27 sentences. A (flu vaccination) can be annual.Logical formLearned from27 sentences. Avian flu can be in a continent.Logical formLearned from27 sentences. Disparities can be in flu.Logical formLearned from27 sentences. A person may come_down with a flu.Logical formLearned from27 sentences. Exercise may increase a susceptibility of mice to a flu.Logical formLearned from27 sentences. A form may pertain-to a flu.Logical formLearned from27 sentences. A flu may undergo a transmission.Logical formLearned from27 sentences. A (bird flu) may jump to humans.Logical formLearned from27 sentences.