An immune system may weaken.Logical formLearned from36 sentences. A protein can be immune.Logical formLearned from36 sentences. An immune system may undergo an overreaction.Logical formLearned from36 sentences. Pathways can be immune.Logical formLearned from36 sentences. An immune system may undergo a failure.Logical formLearned from36 sentences. Immune systems may be damaged.Logical formLearned from36 sentences. Individuals can be with weakened immune systems.Logical formLearned from35 sentences. An immune system may undergo an evolution.Logical formLearned from35 sentences. Immune systems can be strong.Logical formLearned from35 sentences. A person can be with an immune system.Logical formLearned from35 sentences. An immune system may develop.Logical formLearned from35 sentences. Problems can be with an immune system.Logical formLearned from35 sentences. Immune systems may develop.Logical formLearned from35 sentences. An attack may pertain-to an immune system.Logical formLearned from35 sentences. An immune system may attack a tissue.Logical formLearned from34 sentences.