A third of a population may be infected with tuberculosis.Logical formLearned from4 sentences. A document may be infected with a virus.Logical formLearned from4 sentences. A (computer virus) may infect a computer.Logical formLearned from4 sentences. Deer may be infected with bovine tuberculosis.Logical formLearned from4 sentences. Bats may be infected with rabies.Logical formLearned from4 sentences. A bird may be infected with a virus.Logical formLearned from4 sentences. A crop may be infected.Logical formLearned from4 sentences. A program may be infected with a virus.Logical formLearned from4 sentences. Trees may be infected for some years.Logical formLearned from4 sentences. A virus may infect a program.Logical formLearned from4 sentences. E-mail may infect a receiver.Logical formLearned from4 sentences. Some percent of trees may be infected.Logical formLearned from4 sentences. A virus may infect a central nervous system.Logical formLearned from4 sentences. Birds may infect persons.Logical formLearned from4 sentences. Viruses may infect a (computer equipment).Logical formLearned from4 sentences.