Some students may test positive for flu.Logical formLearned from11 sentences. Avian flu can be among poultry.Logical formLearned from11 sentences. An outbreak can be constituted-of-or-filled-with (horse flu).Logical formLearned from11 sentences. A toll can be for victims of (bird flu).Logical formLearned from11 sentences. A strain can be constituted-of-or-filled-with human flu.Logical formLearned from11 sentences. A majority of (bird flu cases) may occur after contact.Logical formLearned from11 sentences. A series can be constituted-of-or-filled-with (bird flu outbreaks).Logical formLearned from11 sentences. A (bird flu) can be time-bomb.Logical formLearned from11 sentences. A country may report a case of a strain of (bird flu).Logical formLearned from11 sentences. A strain of (bird flu) may be detected.Logical formLearned from11 sentences. A flu may be reported.Logical formLearned from11 sentences. (Bird flu) may be found in poultry.Logical formLearned from11 sentences. (Bird flu) may pertain-to a strain.Logical formLearned from11 sentences. A country may battle (bird flu).Logical formLearned from11 sentences. A girl may contract (bird flu).Logical formLearned from11 sentences.