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Well-managed natural infectious diseases are beneficial for children.
When infectious diseases of childhood are not mismanaged by the administration of antibiotics, or by suppressing fever, the diseases prime and mature the immune system and also represent developmental milestones.
Having measles not only results in life-long specific immunity to measles, but also in life-long non-specific immunity to degenerative diseases of bone and cartilage, sebaceous skin diseases, immunoreactive diseases and certain tumours as demonstrated by Ronne (1985).
Having mumps protects against ovarian cancer (West 1969).
This is the area that should be researched and the results heeded instead of trying the impossible: to eradicate infectious diseases.