II. Causes: Infections

  1. Polio-Like Syndromes
    1. Polio (Poliovirus, Poliomyelitis)
    2. Acute Flaccid Myelitis (enterovirus)
    3. Adenovirus
    4. West Nile Virus
  2. Amyotrophic Lateral Sclerosis (ALS) or ALS-Like conditions
    1. Human Immunodeficiency Virus (HIV-1)
    2. Human T-Lymphotropic Virus Type I (HTLV-1)
    3. Enteroviruses

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