What are the causes of acute flaccid myelitis (AFM)?

What are the causes of acute flaccid myelitis (AFM)?

This disease, and diseases like it, may be caused by germs such as viruses, toxins or poisons in the environment, and possibly genetic issues. Some viruses that have been linked with AFM cases include the West Nile virus, poliovirus, and adenoviruses. Non-polio enteroviruses have also been linked to AFM and to diseases of the nervous system like AFM. Prior to the weakness setting in, the person with AFM often has symptoms of a cold-like illness, with fever and breathing issues.