highly significantp <0.004
With the 10 6 PFU dose, the difference in weight loss of NZW/Lac mice relative to C57BL/6 was highly significant ( p <0.004) each day from 8 onwards; for C58 mice the difference from C57BL/6 was significant each day from 4 through 12 ( p =0.001–0.04).