Book excerpt: Providing accurate, accessible information on vaccines and the controversies that surround them, this book outlines the history of vaccine regulation and interactions between vaccines and the immune system, and thoughtfully considers each vaccine debate. Explains in depth the uses, dosage, adverse events, contraindications, and limitations of every vaccine. Traces the rise of vaccine resistance from the 1800s to the present. Considers the role of the government in vaccination requirements. Discusses the debate about whether vaccines cause neuropsychological disorders such as autism spectrum disorder and attention-deficit hyperactivity disorder. Examines the appropriateness of the current recommended childhood vaccines.