Viking Age Smallpox Complicates Story of Viral Evolution An extinct version of the smallpox virus dating to 1,400 years ago prompts speculation about viruses becoming more lethal over time.
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2026. Augusztus 28. Ágoston napja van
2026. Augusztus 28. Ágoston napja van
Viking Age Smallpox Complicates Story of Viral Evolution An extinct version of the smallpox virus dating to 1,400 years ago prompts speculation about viruses becoming more lethal over time.
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