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Grok 4.5Sep 29, 2026x-ai/grok-4.5-20260708
Are vaccines an effective tool to prevent disease?
Yes, vaccines are a highly effective tool for preventing disease, as demonstrated by extensive scientific evidence from clinical trials, real-world observational studies, meta-analyses, and historical public health data. They work by training the immune system to recognize and fight specific pathogens (viruses or bacteria) without causing the full disease, thereby reducing infection risk, severity, transmission, hospitalizations, and deaths.
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