Swans may be infected with a strain of (bird flu).Logical formLearned from4 sentences. Some cases may be infected with virus.Logical formLearned from4 sentences. Hiv/aids may be infected.Logical formLearned from4 sentences. (Water fleas) may be infected with a larvae of a parasitic worm.Logical formLearned from4 sentences. A virus may infect some chickens.Logical formLearned from4 sentences. Chickens may be infected with virus.Logical formLearned from4 sentences. A virus may infect a nervous system.Logical formLearned from4 sentences. Persons may be infected with a disease.Logical formLearned from4 sentences. Hiv/aids may be infected.Logical formLearned from4 sentences. Residents may be infected with a virus.Logical formLearned from4 sentences. Animals may be infected with prions.Logical formLearned from4 sentences. A percent of women may be infected with virus.Logical formLearned from4 sentences. Some babies may be infected by mothers.Logical formLearned from4 sentences. Species may infect insects.Logical formLearned from4 sentences. A parasite may infect cells of a (gut wall).Logical formLearned from4 sentences.