Scatter chart titled "Ebola: How Contagious & Deadly is it?" plotting case fatality rate against R0 (people infected per case) for various diseases. Ebola sits at ~50% fatality, R0 ~2 — high on both axes. Comparisons include bird flu (~58%, R0 1), MERS (~35%, R0 1), smallpox (~30%, R0 5), measles (~1%, R0 9), and common cold (~0%, R0 low). Note: the 2026 D.R.C. outbreak involves Bundibugyo Ebola, which has no current vaccine. Sources: WHO, New York Times.
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