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Infectious Venulitis
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'''Infectious Venulitis''' or '''IVN''' was a name proposed by Dr. [[Erich Ryll]] in response to the patients he saw during the [[1975 Sacramento outbreak]] in California, [[United States]].<ref name="IVN">{{Cite web | url = http://www.ncf-net.org/forum/InfVenulitis-Fall05.htm | date = Fall 2005 | first = Erich | last = Ryll | authorlink = Erich Ryll | title = Infectious Venulitis|website=|access-date=2022-04-09|archive-url=http://web.archive.org/web/20151022083413/http://www.oocities.org/sezar99q/MECFSInfectiousVenulitis.html|archive-date=2015-10-22|url-status=}}</ref> The outbreak would later come to be recognized as [[myalgic encephalomyelitis]] (M.E.). ==History== The outbreak began at Mercy San Juan Hospital, in late summer of 1975, and lasted several years. Over 200 patients and staff fell ill.<ref name="sacbeeobituary">https://www.sacbee.com/news/local/obituaries/article4248996.html</ref> ==Etiology== The name Infectious Venulitis refers to both the infectious nature of the illness Ryll observed,<ref name="IVN"/> as well as [[inflammation]] of the venules (small blood vessels)<ref>[http://medical-dictionary.thefreedictionary.com/venulitis Medical Dictionary - Venulitis]</ref>. Dr Ryll believed it to be a vascular disease, most likely a [[virus]], but his long-term follow-up of patients found that over time, symptoms were less vascular in nature; and the illness was in fact [[myalgic encephalomyelitis]]. ==Presentation== Dr. Ryll describing infectious venulitis: "an influenza-like onset, often so severe in nature that I call it a flu-storm, with [[headache]]s, [[sore throat]], [[fever]], dizziness, [[runny nose]], [[nausea]] and [[vomiting]], [[myalgia|muscle aching]], extremity [[pain]], and other features."<ref name="IVN"/> == See also== *[[1975 Sacramento outbreak]] *[[List of myalgic encephalomyelitis and chronic fatigue syndrome outbreaks|List of outbreaks]] ==Learn more== *[http://www.ncf-net.org/forum/InfVenulitis-Fall05.htm Infectious Venulitis] - Dr [[Erich Ryll]] ==References == {{Reflist}} [[Category:Disease names]]
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