A virus may cause measles.Logical formLearned from12 sentences. A (virus software) can be up-to-date.Logical formLearned from12 sentences. A virus may weaken an immune system.Logical formLearned from12 sentences. A virus may undergo a (transmission rate).Logical formLearned from12 sentences. A virus can be potent.Logical formLearned from12 sentences. A weapon can be against a virus.Logical formLearned from12 sentences. Contamination can be by (computer viruses).Logical formLearned from12 sentences. Response can be to viruses.Logical formLearned from12 sentences. Carriers can be constituted-of-or-filled-with viruses.Logical formLearned from12 sentences. (Vaccinia virus) may undergo a transmission.Logical formLearned from12 sentences. Viruses may be involved.Logical formLearned from12 sentences. A virus can be active.Logical formLearned from12 sentences. Researcher may identify a virus.Logical formLearned from12 sentences. (Virus signatures) may pertain-to a person.Logical formLearned from12 sentences. A (virus protection) can be available.Logical formLearned from12 sentences.