A test can be for human (immunodeficiency virus).Logical formLearned from1 sentences. An infectious agent can be a human (immunodeficiency virus).Logical formLearned from1 sentences. An example of an immune deficiency can be a severe combined immunodeficiency.Logical formLearned from1 sentences. A group of immune deficiencies can be a severe combined immunodeficiency.Logical formLearned from1 sentences. A virus may be knowned as a human (immunodeficiency virus).Logical formLearned from1 sentences.