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A form of encephalitis, the etiology of which is uncertain, that is characterized by lethargy and headache.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for encephalitis lethargica.
15 publications have been identified in PubMed for encephalitis lethargica. Research spans Basic Science / Preclinical (33%), Epidemiology / Natural History (27%), and Case Report / Case Series (20%).
Research Type | Count | % of Total |
|---|---|---|
Laboratory research | 5 | 33% |
Data assembled from 3 of 12 sources · Last updated Sep 19, 2026, 1:53 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
4 |
27% |
Patient case studies | 3 | 20% |
Research summaries | 2 | 13% |
Other research | 1 | 7% |
Vyas A (2026). [PMID: 33620860](https://pubmed.ncbi.nlm.nih.gov/33620860/). *Unknown Journal*. [Other]
Bonomo N (2026). [PMID: 42218820](https://pubmed.ncbi.nlm.nih.gov/42218820/). *J ECT*. [Case Report / Case Series]
Kishore KJN (2025). [PMID: 41062522](https://pubmed.ncbi.nlm.nih.gov/41062522/). *Scientific reports*. [Basic Science / Preclinical]
Zhou Z (2024). [PMID: 38710514](https://pubmed.ncbi.nlm.nih.gov/38710514/). *Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology*. [Basic Science / Preclinical]
McAllister K (2024). [PMID: 40236471](https://pubmed.ncbi.nlm.nih.gov/40236471/). *Social history of medicine : the journal of the Society for the Social History of Medicine*. [Epidemiology / Natural History]
Zhou X (2024). [PMID: 39682481](https://pubmed.ncbi.nlm.nih.gov/39682481/). *Animals : an open access journal from MDPI*. [Basic Science / Preclinical]
Brainin M (2024). [PMID: 38745394](https://pubmed.ncbi.nlm.nih.gov/38745394/). *European journal of neurology*. [Review / Meta-Analysis]
Mumoli L (2024). [PMID: 38581805](https://pubmed.ncbi.nlm.nih.gov/38581805/). *Sleep medicine*. [Case Report / Case Series]
Pandey S (2024). [PMID: 38855289](https://pubmed.ncbi.nlm.nih.gov/38855289/). *World journal of otorhinolaryngology - head and neck surgery*. [Epidemiology / Natural History]
Rogers JP (2024). [PMID: 39440299](https://pubmed.ncbi.nlm.nih.gov/39440299/). *Brain communications*. [Review / Meta-Analysis]