humanities.philosophy.objectivism

On Feb 22, 9:11 am, TC wrote:
[snip]
> Really? Malaria, yellow fever .... all are diseases that flourish in
> hot climes and are spread by insects that live in hot climes.

Heh heh. You funny. Malaria has been around in Canada as
long as we can tell.

http://www.mysteriesofcanada.com/Canada/malaria_in_canada.htm

http://www.rideau-info.com/canal/history/locks/malaria.html
[from the article]
Among the many diseases that ravaged workers during the
building of the Rideau Canal, three of the worst were dysentery,
small pox and malaria. Malaria, extremely rare today in North
America, is a mystery disease to many. It has been suggested
by some that malaria was unique to the Rideau, perhaps brought
by the soldiers working on the Rideau who had previously been
stationed in tropical climates where malaria was rampant. This
isn't true; malaria was in Ontario both before and after the
building of the Rideau Canal.
[snips]
During the construction of the Rideau Canal, a temperate form of
malaria, P. Vivax, was present. This was the form indigenous to
southern Ontario at the time. It has two cycles, the normal short
(weeks) malaria cycle and a much longer cycle where it would
spend nine months or longer incubating in the liver of a human.
This longer cycle allowed it to survive the harsh Canadian winter
by staying inside a human until the mosquitoes were out and
biting again.

Notice: Indigenous to Ontario.

Malaria was fought back by pesticides and draining of swamps.
Where the Rideau was built through a swamp is now city.

Quite pretty, at least in the summer. I spent many hours
riding my bike along the canal the summer I lived in Ottawa.
Socks