Myelitis infect immunocompromised hosts such as Candida species, Aspergillus species, and zygomycetes. Parasitic species infect human hosts through larvae that penetrate the skin. Then they enter the lymphatic and circulatory system, and migrate to liver and lung. Some reach the spinal cord. Parasitic infections have been reported with Schistosoma species, "Toxocara canis", Echinococcus species, "Taenia solium", "Trichinella spiralis", and Plasmodium species. In 2016 it was identified in Mayo clinic an autoimmune form of myelitis due to the presence of anti-GFAP autoantibodies. Immunoglobulins directed against the α-isoform of glial fibrillary acidic protein (GFAP-IgG) predicted an special meningoencephalomyelitis termed autoimmune GFAP Astrocytopathy that
Effect of spaceflight on the human body with current technology is estimated to involve at least 18 months in transit alone. Knowing how the human body reacts to such time periods in space is a vital part of the preparation for such journeys. On-board medical facilities need to be adequate for coping with any type of trauma or emergency as well as contain a huge variety of diagnostic and medical instruments in order to keep a crew healthy over a long period of time, as these will be the only facilities available on board a spacecraft for coping not only with trauma, but also with the adaptive