Changes may weaken immune systems.Logical formLearned from3 sentences. Immune systems may be eroded by stress.Logical formLearned from3 sentences. Ones can be immune.Logical formLearned from3 sentences. Computers can be immune.Logical formLearned from3 sentences. Damage may be doed to an immune system.Logical formLearned from3 sentences. A country can be immune from costs.Logical formLearned from3 sentences. A vaccine may work by triggering a part of an immune system.Logical formLearned from3 sentences. A molecule may pertain-to an immune system.Logical formLearned from3 sentences. Industrial societies can be immune to infectious disease.Logical formLearned from3 sentences. Themselves can be immune to issues.Logical formLearned from3 sentences. (Stem cells) may be tolerated by an immune system.Logical formLearned from3 sentences. Some animals can be immune.Logical formLearned from3 sentences. Genes may alter an immune response.Logical formLearned from3 sentences. A healthy diet may promote an immune system.Logical formLearned from3 sentences. Mom can be immune.Logical formLearned from3 sentences.