A virus may cause chickenpox.Logical formLearned from70 sentences. A virus may cause internal bleedings.Logical formLearned from70 sentences. A virus may move.Logical formLearned from69 sentences. Infection can be with viruses.Logical formLearned from69 sentences. Information can be about viruses.Logical formLearned from69 sentences. A virus may be contained.Logical formLearned from69 sentences. A virus may be passed through contact.Logical formLearned from69 sentences. A strain may pertain-to a (flu virus).Logical formLearned from68 sentences. Persons may contract a virus.Logical formLearned from68 sentences. A virus may be found in a country.Logical formLearned from68 sentences. Thousands can be constituted-of-or-filled-with viruses.Logical formLearned from67 sentences. Virus may scan.Logical formLearned from67 sentences. A female may have a virus.Logical formLearned from67 sentences. A virus may multiply.Logical formLearned from67 sentences. Victims may pertain-to a virus.Logical formLearned from67 sentences.