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SAFV is grouped with Theiler-like rat virus and Theiler's murine encephalomyelitis virus (TMEV) in the species<jats:named-content content-type=\"genus-species\">Theilovirus<\/jats:named-content>of the genus<jats:named-content content-type=\"genus-species\">Cardiovirus<\/jats:named-content>of the family<jats:named-content content-type=\"genus-species\">Picornaviridae<\/jats:named-content>. Eight genotypes of SAFV have now been identified. SAFV has been isolated from nasal and stool specimens from infants presenting with respiratory and gastrointestinal symptoms as well as from children with nonpolio acute flaccid paralysis; however, the relationship of SAFV to this symptomatology remains unclear. Of note, the virus has also been isolated from the cerebrospinal fluid specimens of patients with aseptic meningitis. This finding is of interest since TMEV is known to cause a multiple sclerosis-like syndrome in mice. The involvement of SAFV in various diseases (e.g., respiratory illness, gastrointestinal illness, neurological diseases, and type I diabetes) is presently under investigation. In order to clarify the pathogenicity of SAFV, additional epidemiological studies are required. Furthermore, identification of the SAFV cellular receptor will help establish an animal model for SAFV infection and help clarify the pathogenesis of SAFV-related diseases. In addition, investigation of the tissue-specific expression of the receptor may facilitate development of a novel picornavirus vector, which could be a useful tool in gene therapy for humans. The study of viral factors involved in viral pathogenicity using a reverse genetics technique will also be important.<\/jats:p>","DOI":"10.1128\/jvi.06087-11","type":"journal-article","created":{"date-parts":[[2011,11,24]],"date-time":"2011-11-24T05:47:49Z","timestamp":1322113669000},"page":"1292-1296","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":44,"title":["Saffold Virus, a Novel Human Cardiovirus with Unknown Pathogenicity"],"prefix":"10.1128","volume":"86","author":[{"given":"Toshiki","family":"Himeda","sequence":"first","affiliation":[{"name":"Department of Microbiology, Kanazawa Medical University School of Medicine, Ishikawa, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiro","family":"Ohara","sequence":"additional","affiliation":[{"name":"Department of Microbiology, Kanazawa Medical University School of Medicine, Ishikawa, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.3201\/eid1405.071675"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1128\/JVI.02085-08"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.01062-09"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.micro.59.030804.121242"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.87.3.978"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1038\/200339a0"},{"key":"e_1_3_2_8_2","volume-title":"Fields virology","author":"Chanock RM","year":"1985","unstructured":"ChanockRM McIntoshK. 1985. 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