Bellanti, Joseph A, Novak, Peter, Faitelson, Yoram et al. · The journal of allergy and clinical immunology. In practice · 2023 · DOI
Long COVID is a condition that develops after a COVID-19 infection and can cause symptoms affecting many parts of the body, including heart problems, blood clots, fatigue, and autoimmune issues. This review examines what causes Long COVID and which patients are most at risk, noting that certain groups like Hispanic and Latino communities face higher rates. The authors highlight that while vaccines help prevent severe acute COVID, we still need more research to understand how they affect Long COVID development and progression.
This review is important because Long COVID and ME/CFS share overlapping symptoms (fatigue, dysautonomia, cardiac issues, post-exertional malaise) and immune dysfunction, helping researchers understand potential common pathways. Understanding immunological mechanisms in Long COVID may illuminate similar dysregulated immune responses in ME/CFS. The emphasis on inflammatory pathways as drug targets could have direct implications for ME/CFS treatment development.
This review does not establish causation for any Long COVID symptoms or prove that specific inflammatory pathways directly cause the condition—it identifies associations and proposed mechanisms under investigation. The review cannot determine whether vaccination modifies Long COVID risk since the authors explicitly note limited data on this question. Being a narrative review rather than a meta-analysis, it does not quantify effect sizes or provide systematic evidence synthesis.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
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