Infectious Venulitis
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.[1] The outbreak would later come to be recognized as myalgic encephalomyelitis (M.E.).
History[edit | edit source]
The outbreak began at Mercy San Juan Hospital, in late summer of 1975, and lasted several years. Over 200 patients and staff fell ill.[2]
Etiology[edit | edit source]
The name Infectious Venulitis refers to both the infectious nature of the illness Ryll observed,[1] as well as inflammation of the venules (small blood vessels)[3]. 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[edit | edit source]
Dr. Ryll describing infectious venulitis: "an influenza-like onset, often so severe in nature that I call it a flu-storm, with headaches, sore throat, fever, dizziness, runny nose, nausea and vomiting, muscle aching, extremity pain, and other features."[1]
See also[edit | edit source]
Learn more[edit | edit source]
References[edit | edit source]
- ↑ 1.0 1.1 1.2 Ryll, Erich (Fall 2005). "Infectious Venulitis". Archived from the original on October 22, 2015. Retrieved April 9, 2022.
- ↑ https://www.sacbee.com/news/local/obituaries/article4248996.html
- ↑ Medical Dictionary - Venulitis
