A mystery virus has provoked reports in California, in what appears to be a cluster of cases of viral paralysis, caused possibly by Enterovirus, which appears to have effects similar to poliomyelitis, or Polio, namely paralysis, in some cases in all four limbs. The Polio virus, or Paralytic Poliomyelitis virus, is one of several Enteroviruses, and these attack and infect up to 50 million people every...