Zannolli, R, Morgese, G · Panminerva medica · 1995
This review examines three viruses (Afipia felis, Parvovirus B19, and Herpesvirus 6) that cause common childhood diseases like cat scratch disease and measles-like rashes. The authors note that these same viruses have been suggested as possible causes of chronic fatigue syndrome and other conditions, but proving this connection has been difficult because current tests cannot always tell whether someone has an active infection or just carries the virus from the past.
This review is significant because it directly addresses ME/CFS as a potential infectious etiology and acknowledges the methodological barriers to proving pathogenic involvement. For ME/CFS patients and researchers, it highlights why decades of searching for a single viral culprit has been inconclusive—current diagnostic methods cannot definitively prove infection status. Understanding these limitations is essential for interpreting conflicting research findings.
This review does not establish that any of these three pathogens actually causes ME/CFS. The authors explicitly state that persistent difficulties in isolating pathogens and distinguishing latent from active infection 'still in some cases raises doubts' about disease attribution. The paper is a critical analysis of gaps in evidence, not a proof of causation.
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 →
The first block is for the primary paper and is the citation you should use in research work. The atlas-snapshot line only applies if you are specifically referring to this atlas’s reading of the paper on the date shown.
Primary citation
Zannolli, R & Morgese, G (1995). New pathogens, and diseases old and new. I) Afipia felis and Rochalimaea. II) Parvovirus B 19. III) herpesvirus 6.. Panminerva medica. https://pubmed.ncbi.nlm.nih.gov/8710408/
BibTeX
@article{mecfsatlas-zannolli-1995-new-pathogens,
author = {Zannolli, R and Morgese, G},
title = {New pathogens, and diseases old and new. I) Afipia felis and Rochalimaea. II) Parvovirus B 19. III) herpesvirus 6.},
journal = {Panminerva medica},
year = {1995},
note = {PubMed: 8710408},
url = {https://www.mecfsatlas.com/evidence/zannolli-1995-new-pathogens},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-29. https://www.mecfsatlas.com/evidence/zannolli-1995-new-pathogens
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