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Views: (423) Date: (18-10-09) Time: (00:01:42) |
Description: From Atlanta - Avian flu viruses of the H7 subtype have adapted, at least partially, to more easily invade the human respiratory tract. Scientists examining cases of human infection found that the H7N2 type bound more easily to receptors in the lining of the human respiratory tract, and decreased binding to the receptor cells in birds. While symptoms of H7 viruses have typically been mild, scientists continue to urge the development of vaccines for this subtype. From Orlando - Men aged 75 to ...