Delay in diphtheria, pertussis, tetanus vaccination is associated with a reduced risk of childhood asthma
Effects of diphtheria-tetanus-pertussis or tetanus vaccination on allergies and allergy-related respiratory symptoms among children and adolescents in the United States.
“The odds of having a history of asthma was twice as great among vaccinated subjects than among unvaccinated subjects”
“DTP or tetanus vaccination appears to increase the risk of allergies and related respiratory symptoms in children and adolescents.”
Is infant immunization a risk factor for childhood asthma or allergy?
The relationship between vaccine refusal and self-report of atopic disease in children