Was Typhus Responsible For Napoleon’s 1812 Defeat?

http://www.slate.com/articles/health_and_science/pandemics/2012/12/napoleon_march_to_russia_in_1812_typhus_spread_by_lice_was_more_powerful.single.html

According to author Stephan Talty, Napoleon’s Grand Armee was defeated in Russia during the 1812 campaign, not by Kutusov, the early onset of Winter or the burning of Moscow – but by lice.

For further reading: The Illustrious Dead: The Terrifying Story of How Typhus Killed Napoleon’s Greatest Army by Stephen Talty.