New allergies and intolerances

From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history

The topic of this article is the development of new sensitivities or the development of new allergies and intolerances which were not present before illness, or allergies or intolerances that have worsened since the onset of illness. Allergies, sensitivities and intolerances are recognized occurrences and common in ME/CFS patients.[1][2] The development of new sensitivities, such as to food, alcohol, or drugs, after the onset of ME/CFS is common.[3] In Long COVID, a large international survey found that some patients experienced new allergies including anaphylaxis, and worsening of existing allergies.[4]

Symptom recognition[edit | edit source]

Types of sensitivities[edit | edit source]

Prevalence[edit | edit source]

  • In a 2001 Belgian study, 48.5% of patients meeting the Fukuda criteria and 54.8% of patients meeting the Holmes criteria, in a cohort of 2073 CFS patients, reported new sensitivities to food or drugs.[5]

See also[edit | edit source]

References[edit | edit source]