A handful can be constituted-of-or-filled-with viruses.Logical formLearned from14 sentences. Transmission of a virus may occur.Logical formLearned from14 sentences. A virus can be ubiquitous.Logical formLearned from14 sentences. A virus may infect a computer.Logical formLearned from14 sentences. A virus may peak.Logical formLearned from14 sentences. An envelope may pertain-to a virus.Logical formLearned from14 sentences. A virus may operate.Logical formLearned from14 sentences. Viruses may cause hepatitis.Logical formLearned from14 sentences. Presence may pertain-to a human (immunodeficiency virus).Logical formLearned from14 sentences. A range may pertain-to a virus.Logical formLearned from14 sentences. A virus may carry a gene.Logical formLearned from14 sentences. Dozens can be constituted-of-or-filled-with viruses.Logical formLearned from14 sentences. A (spot virus) can be white.Logical formLearned from14 sentences. Persons may detect a virus.Logical formLearned from14 sentences. A virus may be involved.Logical formLearned from14 sentences.