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From the Right · Read · October 23, 2026

Oct 22 · Moderna and Merck's personalized mRNA melanoma vaccine cuts the risk of recurrence or death by 42%, and Moderna shares tumble after the data leaks early

Just the News: Moderna stock plummets after reported leak of disappointing cancer-vaccine data

Grade D (64/100). Moderna closes down nearly 18% after OncologyCentral posted the study early; the 42% and 38% figures, credited to the Wall Street Journal

Lehrer score 64/100 (−12 loaded wording: headline: 'disappointing cancer-vaccine data' (verdict in the outlet's own voice; the body calls the results 'apparently positive'); −24 factual error: ¶4: 'The company had claimed in August that its vaccine ... had prevented melanoma ... from returning or spreading'. The August announcement was a lower risk, not prevention: Forbes reports it 'significantly lowered the odds of cancer returning or spreading' and CNN a 42% lower risk). Fixed scale: 90+ A, 80s B, 70s C, 60s D, under 60 F → D.

headline: 'disappointing cancer-vaccine data' (verdict in the outlet's own voice; the body calls the results 'apparently positive'); ¶4: 'The company had claimed in August that its vaccine ... had prevented melanoma ... from returning or spreading'. The August announcement was a lower risk, not prevention: Forbes reports it 'significantly lowered the odds of cancer returning or spreading' and CNN a 42% lower risk

Splits: Moderna closes down nearly 18% after OncologyCentral posted the study early; the 42% and 38% figures, credited to the Wall Street Journal

  • Broken. Rule: loaded wording (headline: 'disappointing cancer-vaccine data' (verdict in the outlet's own voice; the body calls the results 'apparently positive'))
  • Broken. Rule: factual error (¶4: 'The company had claimed in August that its vaccine ... had prevented melanoma ... from returning or spreading'. The August announcement was a lower risk, not prevention: Forbes reports it 'significantly lowered the odds of cancer returning or spreading' and CNN a 42% lower risk)

Read at Just the News

Same story: CNN, Forbes

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