Redigerer Senfølger av Covid-19 (avsnitt)

== Forskning ==
<!-- ==Risk factors==
According to a [[King's College London]] study reported on 21 October 2020 (but not yet [[peer-reviewed]]<ref>{{Cite Q|Q108242643}} </ref>) risk factors for Long Covid may include:<ref name="ZoeOct20">{{cite news |title= Long Covid: Who is more likely to get it?|first =James |last=Gallagher |url=https://www.bbc.co.uk/news/health-54622059 |date=21 October 2020 |accessdate= 21. oktober 2020 |work=[[BBC]]}}</ref><ref name=kingsnew>{{cite web | title=New research identifies those most at risk from 'long COVID' | website=King's College London | date=21. oktober 2020 | url=https://www.kcl.ac.uk/news/study-identifies-those-most-risk-long-covid | access-date=22 October 2020}}</ref><ref name =kingsnew/>
* Age – particularly those aged over 50
* Sex – being a [[woman]] (in the younger age group) 
* [[Overweight|Excess weight]]
* [[Asthma]]
* Having more than five symptoms in the first week of [[Coronavirus disease 2019|COVID-19 infection]] (e.g. cough, fatigue, headache, diarrhoea, loss of sense of smell)

==Studies==
In April/May 2020, 143 patients who had been hospitalised in acute care were followed up in [[Rome]], Italy. 87.4% reported at least one persisting symptom, particularly fatigue and [[dyspnoea]].<ref name=carfi/>
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En pasientstudie ved [[King's College London]] anslo at 10 prosent av Covid-19-syke i Storbritannia ikke kom seg innen tre uker, og ca. 250.000 opplevde symptomer i 30 dager eller mer.<ref name=itv>{{cite web | title=Long Covid: What is it, what are the symptoms and what help is there? |first1= Emily |last1=Morgan |first2 =Suzanne |last2 =Elliott| name-list-style = vanc | website=ITV News | date=12. august 2020 | url=https://www.itv.com/news/2020-08-12/long-covid-what-is-it-what-are-the-symptoms-and-what-help-is-there-for-sufferers | access-date=19. oktober 2020}}</ref><ref>{{cite web | date=13. august 2020|title=First patient joins UK's largest study into long terms effects of COVID-19|url=https://www.leicesterbrc.nihr.ac.uk/first-patient-joins-uks-largest-study-into-long-terms-effects-of-covid-19/|url-status=live|archive-url=|archive-date=|access-date=19. oktober 2020|website=Leicester Biomedical Research Council}}</ref>
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On 1 September 2020 ''[[The Lancet Infectious Diseases]]'' published an article by 15 doctors summarising the most common complaints of people recovering from COVID-19, who had experienced different degrees of severity during the acute phase, seen in their clinical practice. They reported an observational study of 100 recovering/recovered patients published in July 2020,<ref>{{Cite Q|Q98170820}}</ref> which found that 78 of these patients had abnormal findings on cardiovascular [[MRI]] (median 71 days after diagnosis), and 36 of those experienced dyspnoea and unusual fatigue. While long-term sequelae of the disease were as yet unknown, the authors said that research into aspects of these long-term effects is needed, including prediction of which patients may suffer such effects, management of the acute phase which may help to avert the symptoms, phases of the immunological response in these patients, possible genetic determinants, and treatments for the symptoms.<ref name="yelin" />

A number of studies are currently looking at the long-term effects of the virus on some individuals. A wide range of longer-term damage to other organs has been found, including the [[nervous system]], and possibly [[kidney]]s, liver, and [[gastrointestinal tract]]. Symptoms such as decreased lung and cardiac function and decreased exercise capacity have frequently been recorded. In addition, a range of symptoms of as yet unknown [[Cause (medicine)|aetiology]], such as [[fatigue]], joint pain, "brain fog", and fever, have led to comparisons with [[ME/CFS|Myalgic Encephalomyelitis/Chronic Fatigue Syndrome]] (ME/CFS), although distinct from such a diagnosis, which is dependent on other criteria. Doctors are hoping to find specific causes for the symptoms experienced by COVID-19 "long-haulers", who are often young, previously fit and healthy people, as their treatment will differ depending on the aetiology, which could be lingering infection, [[autoimmune]] abnormalities, lung or heart damage, inflammation or other reasons.<ref>{{cite web | title=From 'brain fog' to heart damage, COVID-19's lingering problems alarm scientists | website=Science|first =Jennifer |last =Couzin-Frankel | name-list-style = vanc | date=31 July 2020 | url=https://www.sciencemag.org/news/2020/07/brain-fog-heart-damage-covid-19-s-lingering-problems-alarm-scientists | access-date=19 October 2020}}</ref><ref>{{cite web | last=Manke | first=Kara | name-list-style = vanc | title=From lung scarring to heart damage, COVID-19 may leave lingering marks | website=Berkeley News |publisher =University of California at Berkeley | date=8 July 2020 | url=https://news.berkeley.edu/2020/07/08/from-lung-scarring-to-heart-damage-covid-19-may-leave-lingering-marks/ | access-date=19 October 2020}}</ref>

The [[University of Leicester]] and the University Hospitals of Leicester NHS Trust are undertaking a major study into the long-term health effects of COVID-19 {{as of |August 2020 |lc=yes}}.<ref name=itv/><ref>{{cite web | date=13 August 2020|title=First patient joins UK's largest study into long terms effects of COVID-19|url=https://www.leicesterbrc.nihr.ac.uk/first-patient-joins-uks-largest-study-into-long-terms-effects-of-covid-19/|url-status=live|archive-url=|archive-date=|access-date=19 October 2020|website=Leicester Biomedical Research Council}}</ref><ref>{{cite web|date=7 July 2020|title=New national study on long-term health impacts of COVID-19 launched|url=https://www.uclh.nhs.uk/News/Pages/Newnationalstudyonlong-termhealthimpactsofCOVID-19launched.aspx|url-status=live|archive-url=|archive-date=|access-date=19 October 2020|website=University College London Hospitals}}</ref>

On 9 November 2020, a study found that the COVID-19 survivors had around a 18.1% chance of developing a psychiatric disorder within 90 days of COVID-19. 5.8% of these patients were receiving a psychiatric diagnosis for the first time.<ref name=mt1/>
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Den 9. november 2020 sa Dr. [[Anthony Fauci]] at «mellom 25% og 35% av Covid-19-patientene har langvarige symptomer som tretthet, åndenød, muskelsmerter, søvnforstyrrelser og kognitiv dysfunksjon ('hjernetåke')».<ref>{{cite web |udgiver=CNN ||forfatter1=Jenni Marsh |forfatter2=Joshua Berlinger |forfatter3=Zamira Rahim |forfatter4=Jaide Timm-Garcia |forfatter5=Roya Wolverson |title=Fauci says Covid-19 symptoms last “well beyond what you’d expect” from a viral syndrome |url=https://www.cnn.com/world/live-news/coronavirus-pandemic-11-08-20-intl/h_2a657745765c893f1f606f2389063d67 |website=CNN |accessdate=11. november 2020 |language=en |date=8. november 2020}}.</ref>