article_snippet: B1 has five to six coding differences that make it different from other strains commonly found in the U.S., and that five to six coding differences that make it different from other strains commonly found in the U.S. cause nerve-damaging symptoms similar to polio.
article_snippet: And like polio, the nerve damage appears to be permanent - since none of the children have fully recovered. '
article_snippet: This is starting to look more like polio unfortunately where the paralysis appears to be permanent or semi-permanent.
article_snippet: However, the study has not definitely proved the connection between B1 and the paralyzed children, since researchers could not find the strain in the patients' spinal fluid.
highlights_snippet: None of the children monitored in the new study have fully recovered - suggesting the paralysis is permanent .