Cases may pertain-to a (flu virus).Logical formLearned from121 sentences. A virus can be recombinant.Logical formLearned from120 sentences. Victims may pertain-to a virus.Logical formLearned from120 sentences. A virus may appear.Logical formLearned from120 sentences. A female may have a virus.Logical formLearned from119 sentences. Variety can be constituted-of-or-filled-with viruses.Logical formLearned from119 sentences. A computer may have a virus.Logical formLearned from119 sentences. A fatality can be from a virus.Logical formLearned from119 sentences. Copies may pertain-to a virus.Logical formLearned from118 sentences. Cases can be constituted-of-or-filled-with virus.Logical formLearned from117 sentences. Infection can be with virus.Logical formLearned from117 sentences. A (bird flu virus) may mutate into a form.Logical formLearned from117 sentences. A virus can be endemic.Logical formLearned from115 sentences. A male may have a virus.Logical formLearned from115 sentences. A virus may pertain-to a river.Logical formLearned from114 sentences.