Borrelia burgdorferi spirochetes cause Lyme disease and are one of many infections associated with<unk> . Cytomegalovirus<unk>  is a heterogeneous condition, that is, there are several identified causes. Sometimes the term<unk>  spectrum disorders is used. In 60% of patients the cause is idiopathic. In rare cases, it may be associated with meningococcal meningitis When it appears as a comorbid condition with neuromyelitis optica (NMO), it is considered to be caused by NMO-IgG autoimmunity, and when it appears in multiple sclerosis (MS) cases, it is considered to be produced by the same underlying condition that produces the MS plaques. Other causes of<unk>  include infections, immune system disorders, and demyelinating diseases. Viral infections known to be associated with<unk>  include HIV, herpes simplex, herpes zoster, cytomegalovirus, and Epstein-Barr. Flavivirus infections such as Zika virus and West Nile virus have also been associated. Viral association of<unk>  could result from the infection itself or from the response to it. Bacterial causes associated with<unk>  include Mycoplasma pneumoniae, Bartonella henselae, and the types of Borrelia that cause Lyme disease. Lyme disease gives rise to neuroborreliosis which is seen in a small percentage (4 to 5 per cent) of acute<unk>  cases. The diarrhea-causing bacteria Campylobacter jejuni is also a reported cause of<unk> . Other associated causes include the helminth infection schistosomiasis, spinal cord injuries, vascular disorders that impede the blood flow through vessels of the spinal cord, and paraneoplastic syndrome.
Transverse myelitis
Lhermitte's sign
Vascular myelopathy
Acute flaccid myelitis
Amyotrophic lateral sclerosis
Surfer's myelopathy
CMV polyradiculomyelopathy
Primary lateral sclerosis