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Baruch S. Blumberg

Died 5 Apr 2011 at age 85 (born 28 Jul 1925).Baruch Samuel Blumberg was an American physician who shared (with D. Carleton Gajdusek) the 1976 Nobel Prize in Physiology or Medicine “for their discoveries concerning new mechanisms for the origin and dissemination of infectious diseases.” In 1963, Blumberg accidentally discovered an antigen in the blood of an Australian aborigine which he subsequently identified as the hepatitis B surface antigen,a molecule from the surface of the hepatitis B molecule. His report of this discovery (1967) at first encountered indifference, but when confirmed by others, the virus was acknowledged to be the cause of the disease. He then developed a vaccine, though it had high production cost and limited distribution. But his work led to other researchers using recombinant DNA technology toproduce a successful vaccine now in widespread use.«

In light of the rising frequen...

In light of the rising frequency of human - grizzly bear conflicts, the Alaska Department of Fish and Game is advising hikers, hunters, and fishermen to take extra precautions and keep alert of bears while in the field. They advise that outdoorsmen wear noisy little bells on their clothing so as not to startle bears that aren't expecting them. They also advise outdoorsmen to carry pepper spray with them in case of an encounter with a bear. It is also a good idea to watch out for fresh signs of bear activity. Outdoorsmen should recognize the difference between black bear and grizzly bear dung. Black bear dung is smaller and contains lots of berries and squirrel fur. Grizzly bear dung has little bells in it and smells like pepper.
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