A virus may rebound.Logical formLearned from29 sentences. A virus can be in a country.Logical formLearned from29 sentences. Awareness may pertain-to a virus.Logical formLearned from29 sentences. A virus may infect birds.Logical formLearned from29 sentences. A man may die of a virus.Logical formLearned from28 sentences. An (avian influenza virus) can be pathogenic.Logical formLearned from28 sentences. Mosquitoes may be infected with a virus.Logical formLearned from28 sentences. A virus may remain latent.Logical formLearned from28 sentences. A virus may undergo concentrations.Logical formLearned from28 sentences. Messages may contain viruses.Logical formLearned from28 sentences. A virus can be isolated.Logical formLearned from28 sentences. A virus may attack.Logical formLearned from28 sentences. A virus may undergo a creation.Logical formLearned from28 sentences. A virus may be passed.Logical formLearned from28 sentences. A virus may undergo concentration.Logical formLearned from28 sentences.