(Bird flu) may be infected.Logical formLearned from6 sentences. Some percent of an (adult population) may be infected with a virus.Logical formLearned from6 sentences. A person may infect a partner.Logical formLearned from6 sentences. Leaves may be infected.Logical formLearned from6 sentences. A fish may be infected.Logical formLearned from6 sentences. Needles may be infected.Logical formLearned from6 sentences. Some employees may be infected.Logical formLearned from6 sentences. Farms may be infected.Logical formLearned from6 sentences. Persons may be infected with dengue.Logical formLearned from6 sentences. Individuals may be infected with a human (immunodeficiency virus).Logical formLearned from6 sentences. Some persons may be infected with bacteria.Logical formLearned from6 sentences. A cow may be infected.Logical formLearned from6 sentences. Meat may be infected with mad-cow disease.Logical formLearned from6 sentences. Pestis may infect lungs.Logical formLearned from6 sentences. Persons may be infected by domestic fowl.Logical formLearned from6 sentences.