Cumulative Inactivated Vaccine Exposure and Allergy Development Among Children: A Birth Cohort from Japan

Kiwako Yamamoto-Hanada et al.

Adjuvants used in inactivated vaccines often upregulate type 2 immunity, which is dominant in allergic diseases. We hypothesised that cumulative adjuvant exposure in infancy may influence the development of allergies later in life by changing the balance of type 1/type 2 immunity. We examined the relationship between immunisation with different vaccine types and later allergic disease development.

… The prevalence of wheeze, eczema and physician- diagnosed asthma at 1 year of age for the entire cohort of study participants was 19.9%, 18.4–18.7% and 2.5– 2.6%, respectively.

… Because inactivated vaccines generally contain adjuvants, our finding that initial immunisation with more types of inactivated vaccines is associated with the development of asthma or eczema at 12 months of age may implicate adjuvant exposure as a potential risk factor for the development of allergic diseases.

… Aluminium is the most commonly used adjuvant in human inactivated vaccines because this adjuvant stimulates type 2 immune responses … Although we were unable to identify the mechanism of how inactivated vaccines alter immunity because our study was epidemiological, we speculate that it involved the induction of type 2 responses.

… Although we recognise that immunisation is indispensable for the global elimination of various diseases, this large-scale birth cohort study demonstrated that the prevalence of asthma, wheeze and eczema in children at 12 months of age was associated with the administration of a larger number of types of inactivated vaccines at the initial immunisation before 6 months of age.

Latest articles

Bruce Scott In Part I of Menticide 101 and the Brainwashing of...
Bruce Scott It has become quite clear, especially during the last two...
Joseph Mercola Scientists warn repeated COVID boosters may result in lowered immunity...
Mitchell Brent Liester Chlorine dioxide has been condemned as a dangerous poison...
Paul Elkins The recent White House guidance for people to take the...
Igor Chudov The times are changing! Remember how we said that vaccine shedding...

Your donation helps us
stand up for health freedom!

Canada Health Alliance is volunteer run and 100% supported by the generous donations of those who share our concerns and value our work.

Thank you!

The form has been submitted successfully!