What percent of cases of plantar fasciitis are caused by a chronic virus?

We see this as being approximately 60% of those suffering from plantar fasciitis. As we have pointed out, the loadbearing tissues of the body have a particular vulnerability, both mechanically and physically, with respect to composition and healthy vigor, and freedom from degradation. They are, as well, a likely target of the Law of Karma seeing that role as being a parallel to prior karmic trauma where people perhaps were subjected to overexertion and were overtaxed with heavy labor, or perhaps traveling extensive distances in a hurry to escape marauders, or involvement in combat and sustaining injuries to those parts of the body giving rise to such symptoms, creating a weak link in the current life physically. This becomes vulnerable to karma piling on to accentuate the difficulty of being physically challenged in a way that leads to an impairment having serious adverse consequences.