Quote:
Originally Posted by NeilBlanchard
Disease is spreading out -- West Nile virus, malaria, Dengue fever, etc. are all spreading well beyond their "traditional" ranges.
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West Nile and dengue fever are Old World diseases that recently jumped over to the New World and are currently spreading to their full potential range in the New World.
The traditional range for malaria prior to the 1900's ran north into Scandinavia and Siberia in Eurasia and into Canada in North America. Malaria was a big problem in the railroad camps that built the Trans Canadian railroad in the late 1800's.