A virus may enter a bloodstream.Logical formLearned from18 sentences. A person may fear a virus.Logical formLearned from18 sentences. Areas may be affected by a virus.Logical formLearned from18 sentences. A virus may manifest itself.Logical formLearned from18 sentences. A virus may belong to a family.Logical formLearned from18 sentences. A virus may cause (respiratory syndrome).Logical formLearned from18 sentences. Persons may transmit a virus by blood.Logical formLearned from18 sentences. A (life cycle) may pertain-to a virus.Logical formLearned from18 sentences. A (death toll) can be from an outbreak of a virus.Logical formLearned from18 sentences. An (anthrax virus) can be deadly.Logical formLearned from18 sentences. A virus can be stubborn.Logical formLearned from18 sentences. A male may suffer from a virus.Logical formLearned from18 sentences. A male may recover from a virus.Logical formLearned from18 sentences. A virus can be among poultry.Logical formLearned from18 sentences. A virus can be smart.Logical formLearned from18 sentences.