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Scientists to resume work on terrifying H5N1 strain

After heated controversy, virologists plan to recommence research on H5N1, an experimentally developed avian flu strain transmittable to mammals and capable of killing one-half of those it infects.
After heated controversy, virologists plan to recommence research on H5N1, an experimentally developed avian flu strain transmittable to mammals and capable of killing one-half of those it infects.