A massive, 24-year-long study of more than 1.2 million children provides reassurance to parents around the world.
The research has found no compelling evidence that childhood vaccines lead to autism, asthma, or dozens of other chronic disorders.
Researchers in Denmark examined the safety of a specific vaccine ingredient – aluminum salts – which, despite frequent debunking, remains a common talking point among vaccine skeptics. Clinical trials have tested their safety extensively, and they've been used in non-live vaccines for more than 70 years to boost the immune system's response to lower doses of medicine.
It's good to keep studying the potential negative impacts of vaccines.
Only one author discloses links with big pharma.
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