An immune system can be immature.Logical formLearned from18 sentences. An immune system may be shooted.Logical formLearned from18 sentences. Effectors can be immune.Logical formLearned from18 sentences. A virus may destroy an immune system.Logical formLearned from18 sentences. Challenges can be immune to fixes.Logical formLearned from18 sentences. A virus may attack an immune system.Logical formLearned from18 sentences. An immune response can be harmful.Logical formLearned from18 sentences. Immune cells may gather at an (infection site).Logical formLearned from18 sentences. A job may pertain-to an immune system.Logical formLearned from18 sentences. A nature may pertain-to an immune response.Logical formLearned from18 sentences. A job may pertain-to an immune system.Logical formLearned from18 sentences. An immune system may undergo a breakdown.Logical formLearned from18 sentences. An immune system may begin.Logical formLearned from18 sentences. Aspects may pertain-to an immune response.Logical formLearned from18 sentences. An immune system may defend a body.Logical formLearned from18 sentences.