Study: Lice put bite on Napoleon in Russia
By Thomas H. Maugh II
Los Angeles Times
Louse-borne diseases such as typhus and trench fever devastated Napoleon Bonaparte's army during his ill-fated invasion of Russia in 1812, killing nearly one-third of his army, according to a study by French researchers.
Napoleon invaded Russia with 500,000 men that summer but escaped with only a few thousand. Twenty-five thousand French soldiers escaped to Vilnius, Lithuania, during the retreat, but only 3,000 of them survived. The rest were buried in mass graves.
Historians have long emphasized the role of disease in the deaths, but now, Didier Raoult and his colleagues at the Université de la Méditerranée in Marseille, France, have provided the first evidence confirming this supposition.
The team worked with remains found during construction at a former Soviet Army barracks in the northern suburbs of Vilnius.
Napoleon's soldiers were known to be plagued with body lice, Raoult said.
The team found body segments of five lice among clothing remnants from the soldiers. Three of the five lice contained DNA from "Bartonella quintana," which causes the disease known as trench fever, they reported last week in the online version of the Journal of Infectious Diseases.
They also studied dental pulp from the teeth of 35 soldiers. Teeth from seven of the soldiers carried DNA from "B. quintana" and those from three others contained DNA from "Rickettsia prowazakii," which causes epidemic typhus.
When the DNA of such a deadly agent is present in teeth, the team wrote, "It is very likely that the organism was the cause of death.