Polio Vaccination and Chronic Fatigue Syndrome

Abstract:

Background: Previous research has suggested that enteroviruses may be implicated in the development and persistence of Chronic Fatigue Syndrome (CFS). One method of investigating this topic has been to use a polio vaccination challenge, and a previous study showed that CFS patients had more shedding than healthy controls. There was no effect of the vaccination on the clinical condition or wellbeing of the CFS patients.

Methods: In the previous study, the control group were more likely to have had a recent booster vaccination. This was controlled in the present study, where 18 CFS patients were randomly assigned to vaccination or placebo conditions. Nine healthy volunteers were also given the polio vaccination.

Results: The results confirmed that vaccination had no negative effects on the CFS group. Although there was more virus shedding in the CFS polio group than in the control polio group, this difference was not significant.

Conclusion: This study confirms that polio vaccination is not contraindicated in CFS patients but could not confirm that they are more susceptible to enterovirus infection.

Source: Smith AP and Thomas M. Polio Vaccination and Chronic Fatigue Syndrome. Asian Journal of Research in Infectious Diseases 8(4): 43-49. https://orca.cardiff.ac.uk/146095/1/poliocfs.pdf (Full text)

Long term predictors of breathlessness, exercise intolerance, chronic fatigue and well-being in hospitalized patients with COVID-19: A cohort study with 4 months median follow-up

Abstract:

Background: Post-acute COVID-19 syndrome (PACS) is an emerging healthcare burden. We therefore aimed to determine predictors of different functional outcomes after hospital discharge in patients with COVID-19.

Methods: An ambidirectional cohort study was conducted between May and July 2020, in which PCR-confirmed COVID-19 patients underwent a standardized telephone assessment between 6 weeks and 6 months post discharge. We excluded patients who died, had a mental illness or failed to respond to two follow-up phone calls. The medical research council (MRC) dyspnea scale, metabolic equivalent of task (MET) score for exercise tolerance, chronic fatigability syndrome (CFS) scale and World Health Organization-five well-being index (WHO-5) for mental health were used to evaluate symptoms at follow-up.

Results: 375 patients were contacted and 153 failed to respond. The median timing for the follow-up assessment was 122 days (IQR, 109-158). On multivariate analyses, female gender, pre-existing lung disease, headache at presentation, intensive care unit (ICU) admission, critical COVID-19 and post-discharge ER visit were predictors of higher MRC scores at follow-up. Female gender, older age >67 years, arterial hypertension and emergency room (ER) visit were associated with lower MET exercise tolerance scores. Female gender, pre-existing lung disease, and ER visit were associated with higher risk of CFS. Age, dyslipidemia, hypertension, pre-existing lung disease and duration of symptoms were negatively associated with WHO-5 score.

Conclusions: Several risk factors were associated with an increased risk of PACS. Hospitalized patients with COVID-19 who are at risk for PACS may benefit from a targeted pre-emptive follow-up and rehabilitation programs.

Source: Tleyjeh IM, Saddik B, Ramakrishnan RK, AlSwaidan N, AlAnazi A, Alhazmi D, Aloufi A, AlSumait F, Berbari EF, Halwani R. Long term predictors of breathlessness, exercise intolerance, chronic fatigue and well-being in hospitalized patients with COVID-19: A cohort study with 4 months median follow-up. J Infect Public Health. 2021 Nov 18;15(1):21-28. doi: 10.1016/j.jiph.2021.11.016. Epub ahead of print. PMID: 34861604; PMCID: PMC8600938. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8600938/ (Full text)

Who has long-COVID? A big data approach

Abstract:

Background Post-acute sequelae of SARS-CoV-2 infection (PASC), otherwise known as long-COVID, have severely impacted recovery from the pandemic for patients and society alike. This new disease is characterized by evolving, heterogeneous symptoms, making it challenging to derive an unambiguous long-COVID definition. Electronic health record (EHR) studies are a critical element of the NIH Researching COVID to Enhance Recovery (RECOVER) Initiative, which is addressing the urgent need to understand PASC, accurately identify who has PASC, and identify treatments.

Methods Using the National COVID Cohort Collaborative’s (N3C) EHR repository, we developed XGBoost machine learning (ML) models to identify potential long-COVID patients. We examined demographics, healthcare utilization, diagnoses, and medications for 97,995 adult COVID-19 patients. We used these features and 597 long-COVID clinic patients to train three ML models to identify potential long-COVID patients among (1) all COVID-19 patients, (2) patients hospitalized with COVID-19, and (3) patients who had COVID-19 but were not hospitalized.

Findings Our models identified potential long-COVID patients with high accuracy, achieving areas under the receiver operator characteristic curve of 0.91 (all patients), 0.90 (hospitalized); and 0.85 (non-hospitalized). Important features include rate of healthcare utilization, patient age, dyspnea, and other diagnosis and medication information available within the EHR. Applying the “all patients” model to the larger N3C cohort identified 100,263 potential long-COVID patients.

Interpretation Patients flagged by our models can be interpreted as “patients likely to be referred to or seek care at a long-COVID specialty clinic,” an essential proxy for long-COVID diagnosis in the current absence of a definition. We also achieve the urgent goal of identifying potential long-COVID patients for clinical trials. As more data sources are identified, the models can be retrained and tuned based on study needs.

Source: Pfaff ER, Girvin AT, Bennett TD, Bhatia A, Brooks IM, Deer RR, Dekermanjian JP, Jolley SE, Kahn MG, Kostka K, McMurry JA, Moffitt R, Walden A, Chute CG, Haendel MA, The N3C Consortium. (2021). Who has long-COVID? A big data approach [preprint]. UMass Center for Clinical and Translational Science Supported Publications. https://doi.org/10.1101/2021.10.18.21265168. Retrieved from https://escholarship.umassmed.edu/umccts_pubs/253

Shadow Burden of Undiagnosed Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) on Society: Retrospective and Prospective-In Light of COVID-19

Abstract:

Background: Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a poorly understood, complex, multisystem disorder, with severe fatigue not alleviated by rest, and other symptoms, which lead to substantial reductions in functional activity and quality of life. Due to the unclear aetiology, treatment of patients is complicated, but one of the initial problems is the insufficient diagnostic process. The increase in the number of undiagnosed ME/CFS patients became specifically relevant in the light of the COVID-19 pandemic. The aim of this research was to investigate the issues of undiagnosed potential ME/CFS patients, with a hypothetical forecast of the expansion of post-viral CFS as a consequence of COVID-19 and its burden on society.

Methods: The theoretical research was founded on the estimation of classic factors presumably affecting the diagnostic scope of ME/CFS and their ascription to Latvian circumstances, as well as a literature review to assess the potential interaction between ME/CFS and COVID-19 as a new contributing agent. The empirical study design consisted of two parts: The first part was dedicated to a comparison of the self-reported data of ME/CFS patients with those of persons experiencing symptoms similar to ME/CFS, but without a diagnosis. This part envisaged the creation of an assumption of the ME/CFS shadow burden “status quo”, not addressing the impact of COVID-19. The second part aimed to investigate data from former COVID-19 patients’ surveys on the presence of ME/CFS symptoms, 6 months after being affected by COVID-19. Descriptive and analytical statistical methods were used to analyse the obtained data.

Results: The received data assumed that the previously obtained data on the ME/CFS prevalence of 0.8% in the Latvian population are appropriate, and the literature review reports a prevalence of 0.2-1.0% in developed countries. Regarding the reciprocity of ME/CFS and COVID-19, the literature review showed a lack of research in this field. The empirical results show quite similar self-esteem among ME/CFS patients and undiagnosed patients with longstanding disease experience, while former COVID-19 patients show a significantly lower severity of these problems. Notably, “psychological distress (anxiety)” and “episodic fatigue” are significantly predominant symptoms reported by former COVID-19 patients in comparison with ME/CFS patients and undiagnosed patients prior to the COVID-19 pandemic. The results of our analysis predict that the total amount of direct medical costs for undiagnosed patients (out-of-pocket payments) is more than EUR 15 million p.a. (in Latvia), and this may increase by at least 15% due to the consequences of COVID-19.

Conclusions: ME/CFS creates a significant shadow burden on society, even considering only the direct medical costs of undiagnosed patients-the number of whom in Latvia is probably at least five times higher than the number of discerned patients. Simultaneously, COVID-19 can induce long-lasting complications and chronic conditions, such as post-viral CFS, and increase this burden. The Latvian research data assume that ME/CFS patients are not a high-risk group for COVID-19; however, COVID-19 causes ME/CFS-relevant symptoms in patients. This increases the need for monitoring of patients for even longer after recovering from COVID-19’s symptoms, in order to prevent complications and the progression of chronic diseases. In the context of further epidemiological uncertainty, and the possibility of severe post-viral consequences, preventive measures are becoming significantly more important; an integrated diagnostic approach and appropriate treatment could reduce this burden in the future.

Source: Araja D, Berkis U, Lunga A, Murovska M. Shadow Burden of Undiagnosed Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) on Society: Retrospective and Prospective-In Light of COVID-19. J Clin Med. 2021 Jul 6;10(14):3017. doi: 10.3390/jcm10143017. PMID: 34300183. https://pubmed.ncbi.nlm.nih.gov/34300183/

European Network on Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (EUROMENE): Expert Consensus on the Diagnosis, Service Provision, and Care of People with ME/CFS in Europe

Abstract:

Designed by a group of ME/CFS researchers and health professionals, the European Network on Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (EUROMENE) has received funding from the European Cooperation in Science and Technology (COST)-COST action 15111-from 2016 to 2020. The main goal of the Cost Action was to assess the existing knowledge and experience on health care delivery for people with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) in European countries, and to enhance coordinated research and health care provision in this field. We report our findings and make recommendations for clinical diagnosis, health services and care for people with ME/CFS in Europe, as prepared by the group of clinicians and researchers from 22 countries and 55 European health professionals and researchers, who have been informed by people with ME/CFS.

Source: Nacul L, Authier FJ, Scheibenbogen C, Lorusso L, Helland IB, Martin JA, Sirbu CA, Mengshoel AM, Polo O, Behrends U, Nielsen H, Grabowski P, Sekulic S, Sepulveda N, Estévez-López F, Zalewski P, Pheby DFH, Castro-Marrero J, Sakkas GK, Capelli E, Brundsdlund I, Cullinan J, Krumina A, Bergquist J, Murovska M, Vermuelen RCW, Lacerda EM. European Network on Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (EUROMENE): Expert Consensus on the Diagnosis, Service Provision, and Care of People with ME/CFS in Europe. Medicina (Kaunas). 2021 May 19;57(5):510. doi: 10.3390/medicina57050510. PMID: 34069603. https://pubmed.ncbi.nlm.nih.gov/34069603/

Understanding the economic impact of myalgic encephalomyelitis/chronic fatigue syndrome in Ireland: a qualitative study

Abstract:

Background: Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a disabling and complex chronic disease of unknown origin, whose symptoms, severity, and progression are extremely variable. Despite being relatively common, the condition is poorly understood and routine diagnostic tests and biomarkers are unavailable. There is no evidence on the economic impact of ME/CFS in Ireland.

Methods: Adopting a patient and public involvement approach, we undertook three semi-structured focus groups, which together included 15 ME/CFS patients and 6 informal carers, to consider costs related to ME/CFS in Ireland, including how and why they arise. Focus groups were audio-recorded and transcribed verbatim, and we employed thematic analysis following the approach set out in Braun and Clarke (2006).

Results: Themes from the data were: (1) Healthcare barriers and costs; (2) Socioeconomic costs; (3) Costs of disability; and, (4) Carer-related costs. Patient participants described a range of barriers to effective healthcare that led to extra costs, including delays getting a diagnosis, poor awareness/understanding of the condition by healthcare professionals, and a lack of effective treatments. These were linked to poor prognosis of the illness by participants who, as a result, faced a range of indirect costs, including poorer labour market and education outcomes, and lower economic well-being. Direct extra costs of disability were also described, often due to difficulties accessing appropriate services and supports. Informal carer participants described a range of impacts, including time costs, burnout, and impacts on work and study.

Conclusions: The data suggests that ME/CFS patients face a wide range of costs, while there are also wider societal costs in the form of costs to the health service, lost productivity, and impacts on informal carers. These results will inform ongoing research that aims to quantify the economic burden of ME/CFS in Ireland and raise awareness of the illness amongst healthcare providers and policymakers.

Source: Cullinan J, Ní Chomhraí O, Kindlon T et al. Understanding the economic impact of myalgic encephalomyelitis/chronic fatigue syndrome in Ireland: a qualitative study [version 1; peer review: 2 approved]. HRB Open Res 2020, 3:88 (https://doi.org/10.12688/hrbopenres.13181.1) https://hrbopenresearch.org/articles/3-88 (Full text)

The Role of Prevention in Reducing the Economic Impact of ME/CFS in Europe: A Report from the Socioeconomics Working Group of the European Network on ME/CFS (EUROMENE)

Abstract:

This report addresses the extent to which there may be scope for preventive programmes for Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), and, if so, what economic benefits may accrue from the implementation of such programmes. We consider the economic case for prevention programmes, whether there is scope for preventive programmes for ME/CFS, and what are the health and economic benefits to be derived from the implementation of such programmes.

We conclude that there is little scope for primary prevention programmes, given that ME/CFS is attributable to a combination of host and environmental risk factors, with host factors appearing to be most prominent, and that there are few identified modifiable risk factors that could be the focus of such programmes. The exception is in the use of agricultural chemicals, particularly organophosphates, where there is scope for intervention, and where Europe-wide programmes of health education to encourage safe use would be beneficial. There is a need for more research on risk factors for ME/CFS to establish a basis for the development of primary prevention programmes, particularly in respect of occupational risk factors. Secondary prevention offers the greatest scope for intervention, to minimise diagnostic delays associated with prolonged illness, increased severity, and increased costs.

Source: Pheby DFH, Araja D, Berkis U, Brenna E, Cullinan J, de Korwin JD, Gitto L, Hughes DA, Hunter RM, Trepel D, Wang-Steverding X. The Role of Prevention in Reducing the Economic Impact of ME/CFS in Europe: A Report from the Socioeconomics Working Group of the European Network on ME/CFS (EUROMENE). Medicina (Kaunas). 2021 Apr 16;57(4):388. doi: 10.3390/medicina57040388. PMID: 33923830; PMCID: PMC8073750.  https://pubmed.ncbi.nlm.nih.gov/33923830/ (Full text)

Association between chronic fatigue syndrome and suicidality among survivors of Middle East respiratory syndrome over a 2-year follow-up period

Abstract:

Suicide is an important public health issue during the current pandemic of emerging infectious diseases (EIDs). In EIDs, various symptoms persist even after recovery, and chronic fatigue is among those that are commonly reported. The aim of this study was to examine the effects of chronic fatigue syndrome on suicidality during the recovery phase among survivors of Middle East respiratory syndrome (MERS). MERS survivors were recruited from five centers and prospectively followed up for 2 years. In total, 63 participants were registered at 12 months (T1), of whom 53 and 50 completed the assessments at 18 months (T2) and 24 months (T3), respectively. Suicidality and chronic fatigue were evaluated using the suicidality module of the Mini-International Neuropsychiatric Interview (MINI) and the Fatigue Severity Scale (FSS), respectively.

We analyzed the relationship between chronic fatigue and suicidality during the follow-up period using the generalized estimating equation (GEE). The suicidality rates were 22.2% (n = 14), 15.1% (n = 8), and 10.0% (n = 5) at T1-T3, respectively. Of the 63 participants, 29 had chronic fatigue syndrome at T1. The group that reported chronic fatigue syndrome at T1 was more likely to experience suicidality during the 2-year follow-up than the group that reported otherwise (RR: 7.5, 95% CI: 2.4-23.1). This association was present even after adjusting for potential confounders (RR: 7.6, 95% CI: 2.2-26.0). Chronic fatigue syndrome and suicide risk among emerging infectious disease (EID) survivors should be acknowledged, and effective interventions must be developed.

Source: Ahn SH, Kim JL, Kim JR, Lee SH, Yim HW, Jeong H, Chae JH, Park HY, Lee JJ, Lee H. Association between chronic fatigue syndrome and suicidality among survivors of Middle East respiratory syndrome over a 2-year follow-up period. J Psychiatr Res. 2021 Feb 17;137:1-6. doi: 10.1016/j.jpsychires.2021.02.029. Epub ahead of print. PMID: 33631632; PMCID: PMC7888998. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7888998/  (Full text)

Chronic Disease Stakeholders Join SOLVE M.E. in Push for Federally Funded Research into Long COVID

Press Release: LOS ANGELES, Dec. 4, 2020 /PRNewswire/ — Twenty leading chronic disease stakeholders joined the Solve ME/CFS Initiative (Solve M.E.) in authoring a powerful letter urging Congress to fund millions of dollars in new National Institutes of Health (NIH) and Centers for Disease Control and Prevention (CDC) research into the post-viral health complications for long-term COVID-19 (Long COVID) survivors. To view a copy of the letter, click here.

With more than 13.9 million coronavirus infections in the U.S., the letter emphasizes the importance of research into chronic conditions known to be associated with viral triggers, such as: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), Dysautonomia, Mast Cell Activation Syndrome (MCAS), and Postural Orthostatic Tachycardia Syndrome (POTS), among others. Authors of the letter include: Solve ME/CFS Initiative, National Health Council, National Organization for Women, #MEAction, Open Medicine Foundation, Dysautonomia International, The Mast Cell Disease Society, Body Politic, COVID-19 Longhauler Advocacy Project, Hadassah, American Medical Women’s Association, Nurse Practitioners in Women’s Health, HealthyWomen, Bateman-Horne Center, Institute for Neuro-immune Medicine, Pandora.Org, Sex and Gender Health Collaborative, Minnesota ME/CFS Alliance, The Shane Foundation, Massachusetts ME/CFS & FM Association, & The American Dysautonomia Institute.

Letter serves as a warning about the increasing number of COVID-19 patients experiencing post-viral complications.

“Preliminary evidence suggests that nearly five million Americans will experience Long COVID regardless of infection severity, which will likely result in a post-viral chronic fatigue crisis,” said Oved Amitay, CEO of Solve M.E. “Solve M.E. and our stakeholder allies call on Congress to act now to support new NIH and CDC funding for research into the health needs of this rapidly growing patient population.”

The letter cites warnings from leading public health officials — including Dr. Anthony Fauci, Director of the National Institute of Allergy and Infectious Diseases — about the estimated 3.2 million Americans that could be temporarily or permanently disabled by Long COVID symptoms. Indeed, studies show that 66 percent of patients with post-viral acute respiratory distress syndrome report experiencing severe fatigue after 12 months, consistent with Dr. Fauci’s analysis that Long COVID symptoms are “highly suggestive” of ME/CFS. These alarming statistics underscore the urgent need for funding, research, diagnostics, and treatment into Long COVID.

Chronic disease experts unanimously agree that in order to adequately address Long COVID complications, Congress must act immediately and appropriate the following funds:

$110 million for the establishment of Long COVID Collaborative Research Centers and Centers of Excellence;
$60 million toward expanding post-viral disease research;
$3.5 million for the development and issuance of medical guidance about Long COVID to medical providers and front-line health professionals; and
$300,000 toward convening experts and stakeholders to establish data harmonization.

“We strongly encourage these funds be allocated to the NIH and CDC by way of the congressional appropriations process or a future COVID-19 relief package so this critically important research can begin immediately,” said Amitay.

About Solve ME/CFS Initiative

Solve M.E. is the leading, national non-profit organization solely dedicated to solving ME/CFS. We are committed to making ME/CFS understood, diagnosable, and treatable. Solve M.E. works to accelerate the discovery of safe and effective treatments and strives for an aggressive expansion of funding for research that will lead to a cure.

To learn more, visit our website at www.solveCFS.org

Media Inquiries Only Contact
Emily Taylor
Director of Advocacy and Communications
714-296-1661
ETaylor@solvecfs.org

Fibromyalgia and Chronic Fatigue Syndrome in the Age of COVID-19

Excerpt:

It has been demonstrated that clinical outcomes of COVID-19 are significantly worse in persons with advanced age and those with “traditional” medical comorbidities (cardiovascular disease, pulmonary disease, diabetes, malignancy, and immunosuppression). But what about the ever-increasing group of people in our society, many of whom do not have “traditional” medical comorbidities, who suffer chronically from pain, fatigue, and functional decline? We are referring to patients with fibromyalgia (FM) and chronic fatigue syndrome (CFS): 2 conditions that, although medically distinct, share a common pathophysiological etiology: central sensitization (CS).

Source: Mohabbat AB, Mohabbat NML, Wight EC. Fibromyalgia and Chronic Fatigue Syndrome in the Age of COVID-19. Mayo Clin Proc Innov Qual Outcomes. 2020 Nov 13. doi: 10.1016/j.mayocpiqo.2020.08.002. Epub ahead of print. PMID: 33204998; PMCID: PMC7661943. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7661943/ (Full text)