Presence may pertain-to a virus.Logical formLearned from39 sentences. Mosquitoes may carry virus.Logical formLearned from39 sentences. A virus may cause encephalitis.Logical formLearned from39 sentences. Viruses may undergo a transmission.Logical formLearned from39 sentences. An (ebola virus) can be deadly.Logical formLearned from39 sentences. Some persons may have a virus.Logical formLearned from39 sentences. A virus may kill some persons.Logical formLearned from39 sentences. A (flu virus) can be seasonal.Logical formLearned from39 sentences. A virus may spread to some countries.Logical formLearned from39 sentences. Viruses may infect humans.Logical formLearned from39 sentences. A virus may run a course.Logical formLearned from38 sentences. A human (immunodeficiency virus) may undergo a transmission.Logical formLearned from38 sentences. A virus may be removed.Logical formLearned from38 sentences. A virus may undergo an elimination.Logical formLearned from38 sentences. A (virus protection software) may pertain-to a person.Logical formLearned from38 sentences.