A virus can be in memory.Logical formLearned from13 sentences. A male may create a virus.Logical formLearned from13 sentences. An infectivity may pertain-to a virus.Logical formLearned from13 sentences. A virus may infect persons.Logical formLearned from13 sentences. Virus can be free.Logical formLearned from13 sentences. Breeding grounds can be for viruses.Logical formLearned from13 sentences. An infection may be caused by a virus.Logical formLearned from13 sentences. An email may contain a virus.Logical formLearned from13 sentences. A virus can be unstoppable.Logical formLearned from13 sentences. A virus can be certified.Logical formLearned from13 sentences. A person may run a virus.Logical formLearned from13 sentences. A (bird flu virus) may be detected in ducks.Logical formLearned from13 sentences. Viruses can be on a computer.Logical formLearned from13 sentences. A virus may be shown to prednisone.Logical formLearned from13 sentences. A (child virus) can be deadly.Logical formLearned from13 sentences.