Word: strains
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Dates: during 1990-1999
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What is so strange is that ten years ago, it was social programs that didn't work that were under attack. It was a Charles A. Murray '65 strain of conservatism that argued for cuts, not because the expense was too great, but because the rewards were non-existent. We dismantled welfare (2.8 percent of the federal budget) not because it was too expensive, but because it didn't work. But the '90s have brought in a new and perhaps more pernicious strain of conservatism to bear: an entrepreneurial conservatism of efficiency and market values now threatens even America...
Springer, the Latham Professor of Pathology, and Bleul, a fellow in pathology at the Center for Blood Research, found that the T-tropic strain attacks a different portion of the immune system than does an earlier strain of HIV, called M-tropic strain...
Matured T cells have been taught to locate invaders which express the receptor for the M-tropic strain. Those that are not able to spot invaders--native T cells--express the receptor for the T-tropic strain...
Springer and Bleul are still investigating the methods by which the receptors of the M-tropic strain of HIV might be blocked, which could lead to a possible new treatment for AIDS...
...Therapy aimed at T-tropic HIV may be difficult because the receptors involved are very important," Springer said. "The M-tropic strain is not as essential...