http://newstudentoffortune.com/collections/all/products/bios-242-bios-242-bios242-week-6-ilab-specific-immunity
Case 161
When the Mason family finally took possession of the 1400 acres that would be their new home, they spent every weekend exploring along its creeks and ravine. One discovery of importance was a natural spring, only a short distance from a field where they planned to raise cattle. When the water was tested for safety, this organism was one of the microbes identified.
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