As these species disappear, others begin to thrive in areas they don’t belong. Some bacteria normally associated with the skin find their way into the blood and lymph nodes. In addition, certain gut bacteria find a way to break through the intestinal wall and migrate to find other areas to grow. Within 7 days, the entire body can become colonized such that even the most sterile location in the body, the pericardial area, turns into a bacterial home. But even these bacteria don’t survive forever and as the body begins to dry, they too will disappear leaving only species known to be associated with soil.