DNA reveals hidden killer of Napoleon’s troops in Russia

Deutsche Welle (DW)CenterEN 5 min read 100% complete by Matthew Ward AgiusOctober 25, 2025 at 04:26 PM

AI Summary

long article 5 min

A French research team has uncovered two new bacteria that contributed to the downfall of Napoleon's Grande Armee during the 1812 Russian campaign. The researchers analyzed ancient DNA from mass graves in Vilnius, Lithuania, and found genetic evidence for Salmonella enterica enterica and Borrelia recurrentis. These bacteria, along with typhus and trench fever, were previously known to have affected the army. The four diseases share similar symptoms, including fevers, muscle aches, and fatigue, making diagnosis nearly impossible in 1812. Napoleon's forces suffered heavy losses due to disease, starvation, and freezing conditions, resulting in only 30,000 soldiers surviving the withdrawal from Russia. The discovery sheds new light on the causes of the Grande Armee's defeat and highlights the importance of ancient DNA analysis in understanding historical events.

Keywords

dna analysis 80% paratyphoid-causing bacteria 80% salmonella enterica 70% napoleon's troops 70% typhus and trench fever 60% borrelia recurrentis 60% russian campaign 50% pasteur institute 40%

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Negative
Score: -0.30

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Source
Deutsche Welle (DW)
Political Lean
Center (-0.10)
Far LeftCenterFar Right
Classification Confidence
90%
Geographic Perspective
Russia

This article was automatically classified using rule-based analysis. The political bias score ranges from -1 (far left) to +1 (far right).

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