A user may be infected.Logical formLearned from3 sentences. A virus may infect an upper respiratory tract.Logical formLearned from3 sentences. Bacteria may infect tendons.Logical formLearned from3 sentences. Systems may be infected with a worm.Logical formLearned from3 sentences. Mice may be infected with (mouse hepatitis virus).Logical formLearned from3 sentences. A (word document) may be infected.Logical formLearned from3 sentences. A student may be infected with a virus.Logical formLearned from3 sentences. Persons may be infected with an influenza.Logical formLearned from3 sentences. A boy may be infected during a (flu season).Logical formLearned from3 sentences. A woman may be infected with tuberculosis.Logical formLearned from3 sentences. A (baby boy) may be infected.Logical formLearned from3 sentences. Some persons may be infected with enterovirus.Logical formLearned from3 sentences. A student may be infected.Logical formLearned from3 sentences. Some residents may be infected with pneumonia.Logical formLearned from3 sentences. Someone may be infected by a type.Logical formLearned from3 sentences.