Prisoners may be infected.Logical formLearned from3 sentences. Organs may be infected with a virus.Logical formLearned from3 sentences. Actors may be infected.Logical formLearned from3 sentences. Carriers may infect persons.Logical formLearned from3 sentences. Hatred may infect a region.Logical formLearned from3 sentences. Some farms may be infected with avian flu.Logical formLearned from3 sentences. A world-city may be infected by retroviruses.Logical formLearned from3 sentences. A flu may infect millions of chickens.Logical formLearned from3 sentences. Chickens may be infected with a strain.Logical formLearned from3 sentences. Birds may be infected with a strain of a virus.Logical formLearned from3 sentences. Some animals may be infected as calves.Logical formLearned from3 sentences. A farm may be infected.Logical formLearned from3 sentences. A brain may be infected by bacteria.Logical formLearned from3 sentences. A dose may infect humans.Logical formLearned from3 sentences. A medical researcher may be infected with a virus.Logical formLearned from3 sentences.