Study finds no evidence aluminum salts in vaccines are tied to higher risk of asthma, other childhood diseases

When anti-vaccine activists and others argue that the immunizations used to protect children from infectious diseases are risky, they often point to aluminum salts, a product added to many childhood vaccines to increase their effectiveness.

A new large study from Denmark directly counters those claims. After mining the vaccination and medical records of more than 1.2 million children over a 24-year period, researchers could see no evidence that exposure to aluminum in vaccines led to a statistically significant increase in a child’s risk of developing any of a wide variety of conditions that can be diagnosed in childhood, including asthma and autism.

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