A (bird flu vaccine) may be elicited.Logical formLearned from12 sentences. Protection may help in (bird flu treatments).Logical formLearned from12 sentences. Victims of some (flu virus) may have protection.Logical formLearned from12 sentences. Avian flu may be identified.Logical formLearned from12 sentences. A vaccine may protect against flu.Logical formLearned from12 sentences. A male may fall with flu.Logical formLearned from12 sentences. Someone can be with flu.Logical formLearned from12 sentences. Some children may die of flu.Logical formLearned from12 sentences. Children can be with a flu.Logical formLearned from12 sentences. Some outbreak can be constituted-of-or-filled-with avian flu.Logical formLearned from12 sentences. (Flu experts) can be international.Logical formLearned from12 sentences. A (flu season) may run.Logical formLearned from12 sentences. (Flu vaccine) can be in supply.Logical formLearned from12 sentences. A male may get over a flu.Logical formLearned from12 sentences. Children may get a flu.Logical formLearned from12 sentences.