Humans may be infected.Logical formLearned from7 sentences. Viruses may infect (animal species).Logical formLearned from7 sentences. A fungus may infect leaves.Logical formLearned from7 sentences. Children may be infected with human (immunodeficiency virus).Logical formLearned from7 sentences. Birds may be infected with (bird flu).Logical formLearned from7 sentences. A worm may infect machines.Logical formLearned from7 sentences. A mosquito may be infected with a virus.Logical formLearned from7 sentences. Computers may be infected with spyware.Logical formLearned from7 sentences. A cat may be infected.Logical formLearned from7 sentences. Hosts may be infected with a worm.Logical formLearned from7 sentences. Patients may be infected with a (flu virus).Logical formLearned from7 sentences. Some viruses may infect a cell.Logical formLearned from7 sentences. American scientists may infect prisoners.Logical formLearned from7 sentences. A boy may be infected with a (bird flu virus).Logical formLearned from7 sentences. Some persons may be infected with tuberculosis.Logical formLearned from7 sentences.