Avian flu can be in humans.Logical formLearned from30 sentences. A person may have a case of a flu.Logical formLearned from30 sentences. Persons can be with a flu.Logical formLearned from30 sentences. A dose may pertain-to a flu.Logical formLearned from30 sentences. A (flu vaccine) may pertain-to a country.Logical formLearned from30 sentences. (Flu strains) can be seasonal.Logical formLearned from30 sentences. Flu can be in a world-city.Logical formLearned from30 sentences. Alert can be for (bird flu).Logical formLearned from30 sentences. Some deaths can be from flu.Logical formLearned from30 sentences. A man may die from (bird flu).Logical formLearned from30 sentences. A country may witness (bird flu deaths).Logical formLearned from30 sentences. A (bird flu outbreak) may kill some persons.Logical formLearned from30 sentences. A (death toll) can be from a (bird flu crisis).Logical formLearned from30 sentences. (Bird flu cases) can be in a country.Logical formLearned from29 sentences. A strain may pertain-to an avian flu.Logical formLearned from29 sentences.