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History
See other History Articles

Title: Study: Napoleon's Army Destroyed by Lice
Source: Discovery Channel
URL Source: http://dsc.discovery.com/news/brief ... poleonarmy_his.html?source=rss
Published: Jan 3, 2006
Author: Rossella Lorenzi, Discovery News
Post Date: 2006-01-04 23:09:16 by robin
Keywords: Napoleons, Destroyed, Study:
Views: 73
Comments: 5

Jan. 3, 2006— Lice played a key role in Napoleon Bonaparte's disastrous invasion of Russia in 1812, according to genetic research into the skeletal remains of the ill-fated army.

Napoleon marched into Russia in the summer of 1812, leading the largest army Europe had ever seen, some half million soldiers, toward Moscow.

The invasion was the French emperor's answer to tzar Alexander I's refusal of the Continental System, a system of economic preference and protection within Europe aimed to exclude British trade and reinforce the French economy at the expense of the other states.

Six months later, the Grande Armée was reduced to 25,000 men who retreated to Vilnius, Lithuania, in the freezing cold. Only 3,000 survived the war, weather and disease to continue the retreat. The dead were buried in mass graves.

One such grave, containing between 2,000 and 3,000 corpses, was discovered in 2001 in Vilnius during some construction work.

Analysis of the remains produced hard genetic evidence that louse-borne pathogens were a major factor in the French retreat from Russia, Didier Raoult, of the Université de la Méditerranée in Marseille, and colleagues reported in the January issue of The Journal of Infectious Diseases.

"We believe that louse-borne diseases caused much of the death of Napoleon's army," Raoult told Discovery News.

Human body lice transmit Borrelia recurrentis, Bartonella quintana and Rickettsia prowazekii, the agents of louse-borne relapsing fever, trench fever and epidemic typhus, respectively.

Raoult and colleagues analyzed two kilograms of earth from the mass grave containing bone fragments and remnants of clothing and identified body segments of five lice.

Three of them carried DNA from relapsing fever.

The scientists then analyzed dental pulp from 72 teeth, taken from the remains of 35 soldiers. The sequencing revealed DNA of Bartonella quintana in seven soldiers.

"We believe that these findings provide firm evidence that the soldiers had trench fever," wrote the researchers.

The team also detected the DNA of Rickettsia prowazekii in three other soldiers, indicating that Napoleon's army also suffered from epidemic typhus.

Overall, nearly one-third of Napoleon's soldiers buried in Vilnius were affected by louse-borne infectious diseases, the researchers concluded.

"This is very important and exciting research because it provides compelling physical evidence for the impact of louse-borne diseases on Grand Army troops during Napoleon's invasion of, and retreat from, Russia," Robert Peterson, an expert of insect ecology and agricultural and biological risk assessment at Montana State University, told Discovery News.

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Begin Trace Mode for Comment # 4.

#1. To: All (#0)

Napoleon's
Army: Brought Down by Bugs

Pictures: AP Photo/Petr David Josek |

Napoleon's Army: Brought Down by Bugs
Tens of thousands of spectators came to observe some 3,800 history enthusiaists re-enacting the Battle of Austerlitz, in the Czech Republic, to mark its 200th anniversary on Dec. 3, 2005. French Emperor Napoleon Bonaparte defeated armies of Russian Tsar Alexander I. and Austrian Emperor Franz I. at Austerlitz on Dec. 2, 1805.

robin  posted on  2006-01-04   23:10:16 ET  (1 image) Reply   Untrace   Trace   Private Reply  


#2. To: robin (#1)

The tremendous cold and terrible boots and "scorched earth" policy going into Russia, couldn't have helped the retreat much either. Happy New Year, Robin.

tom007  posted on  2006-01-04   23:29:37 ET  Reply   Untrace   Trace   Private Reply  


#3. To: tom007 (#2)

The tremendous cold and terrible boots and "scorched earth" policy going into Russia, couldn't have helped the retreat much either.

How did the lice survive all that snow?

Happy New Year Tom!

robin  posted on  2006-01-04   23:42:03 ET  Reply   Untrace   Trace   Private Reply  


#4. To: robin (#3)

How did the lice survive all that snow?

Happy New Year Tom!

Wondering that too. Guess they were totally in the clothing of the French, and nobody was taking a bath at -20 F. Lots of livestock around to serve as a reservoir for the paprasite??

tom007  posted on  2006-01-04   23:52:22 ET  Reply   Untrace   Trace   Private Reply  


Replies to Comment # 4.

#5. To: tom007 (#4)

nobody was taking a bath at -20 F. Lots of livestock around to serve as a reservoir for the paprasite??

Pleasant thought. I never knew lice could transmit such serious diseases though.

Human body lice transmit Borrelia recurrentis, Bartonella quintana and Rickettsia prowazekii, the agents of louse-borne relapsing fever, trench fever and epidemic typhus, respectively.

robin  posted on  2006-01-04 23:57:27 ET  Reply   Untrace   Trace   Private Reply  


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