No one knows for sure, though according to some authors childhood vaccinations are suspect.
As writer Walene James has stated:
“Vaccination lays the foundation for autoimmune diseases and other disorders of the immune system such as rheumatoid arthritis, rheumatic fever, lupus erythematosus, scleroderma…. It is reasonable to assume that our contemporary ‘epidemic’ of allergies has at least some of its roots in the practice of vaccination.”
