{"Name":"Encephalitis lethargica","DiseaseID__c":"GARD:0006332","id":6332,"encodedName":"encephalitis-lethargica","IsDeleted":false,"Disease_Name_Full__c":"Encephalitis lethargica","Xref_IDs__c":"186499007; C0014040; C26761; C34576; DOID:5225; MEDGEN:4028; MONDO:0019384; ORPHA:83600","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":2,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":0,"World_Estimate__c":"1 to 8,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":0,"No_of_Disease_Descriptions__c":3,"Disease_Characteristics_Score__c":6,"No_of_Age_at_Onset__c":1,"Description_Source__c":"MONDO:0019384","Disease_Description__c":"A form of encephalitis, the etiology of which is uncertain, that is characterized by lethargy and headache.","GARD_Name__c":"Encephalitis lethargica","GARD_Synonym__c":"epidemic encephalitis; lethargic encephalitis; von economo disease; von economo encephalitis; von economo's disease; von economo's encephalitis","Curated_Disease_Description_Source__c":"GARD:0006332","Curated_Disease_Description__c":"Encephalitis lethargica (EL) is a disease characterized by high fever, headache, double vision, delayed physical and mental response, extreme tiredness (lethargy), and sometimes coma. Patients may also experience abnormal eye movements, upper body weakness, muscle pain, tremors, neck rigidity, and behavioral changes including psychosis. A worldwide epidemic of EL occurred from 1917 to 1928 with more than one million reported cases. Although occasional cases are reported with similar symptoms, EL epidemics have not recurred. The cause of this condition is unknown, but a viral origin is suspected. Levodopa and other antiparkinson drugs may be effective in alleviating some symptoms.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as an Adult","SourceID__c":"ORPHA:83600","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0019384","ORPHANET_ID__c":"ORPHA:83600","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Encefalitis letárgica","Spanish_Description_Source__c":null,"Spanish_Description__c":null,"Spanish_Disease_Name__c":"encefalitis letárgica","Spanish_GARD_Synonym__c":"encefalitis de von economo","Category_Linearization__c":"ORPHA:68416","icd10_id__c":null,"mesh_id__c":null,"omim_id__c":null,"snomed_id__c":null,"umls_id__c":null,"GARD_Disease__c":[{"Curated_Disease_Description__c":"Encephalitis lethargica (EL) is a disease characterized by high fever, headache, double vision, delayed physical and mental response, extreme tiredness (lethargy), and sometimes coma. Patients may also experience abnormal eye movements, upper body weakness, muscle pain, tremors, neck rigidity, and behavioral changes including psychosis. A worldwide epidemic of EL occurred from 1917 to 1928 with more than one million reported cases. Although occasional cases are reported with similar symptoms, EL epidemics have not recurred. The cause of this condition is unknown, but a viral origin is suspected. Levodopa and other antiparkinson drugs may be effective in alleviating some symptoms.","Curated_Disease_Description_Source__c":"GARD:0006332","GARD_Synonym__c":"epidemic encephalitis; lethargic encephalitis; von economo disease; von economo encephalitis; von economo's disease; von economo's encephalitis","Name":"Encephalitis lethargica","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Encephalitis Society","Website__c":"https://www.encephalitis.info/"},{"Account_Name__c":"Parkinson & Movement Disorder Alliance","Website__c":"https://www.pmdalliance.org/"},{"Account_Name__c":"International Parkinson and Movement Disorder Society","Website__c":"https://www.movementdisorders.org/"}],"GARD_Disease_Tag__c":[{"Tag_Name__c":"Neurology","Tag_Category__c":"Disease Category;Specialist","category_description":"Neurological diseases affect the brain, spinal cord, cranial nerves, autonomic nerves, or other peripheral nerves.","curated_tag_name":"Neurological diseases"},{"Tag_Name__c":"Epilepsy","Tag_Category__c":"Account;Specialist","curated_tag_name":"Epilepsy"},{"Tag_Name__c":"Parkinsonism","Tag_Category__c":"Account","curated_tag_name":"Parkinsonism"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Adult","Provided_By__c":"ORPHA:83600"}],"External_Identifier_Disease__c":[{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C0014040","Source__c":"C0014040","Xref__c":"C0014040"},{"URL__c":"https://www.orpha.net/en/disease/detail/83600","Source__c":"C0014040; MONDO:0019384; ORPHA:83600","Xref__c":"ORPHA:83600"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C26761","Source__c":"C0014040; MONDO:0019384","Xref__c":"C26761"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C34576","Source__c":"MONDO:0019384","Xref__c":"C34576"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=186499007","Source__c":"C0014040; MONDO:0019384","Xref__c":"186499007"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=4028","Source__c":"C0014040","Xref__c":"MEDGEN:4028"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A5225","Source__c":"MONDO:0019384","Xref__c":"DOID:5225"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0019384","Source__c":"GARD:0006332","Xref__c":"MONDO:0019384"}],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Chronic pain in the limbs with no clear focal etiology.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009763","HPO_Synonym__c":"Limb pain","HPO_Name__c":"Limb pain","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Inflammation (due to infection or irritation) of the pharynx.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0025439","HPO_Name__c":"Pharyngitis","Feature_System__c":"Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormal pattern in the quality, quantity, or characteristics of sleep.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002360","HPO_Synonym__c":"Difficulty sleeping; Sleep abnormality; Sleep disturbances; Sleep dysfunction; Sleep-wake disturbance; Trouble sleeping","HPO_Name__c":"Sleep disturbance","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Encephalopathy is a term that means brain disease, damage, or malfunction. In general, encephalopathy is manifested by an altered mental state.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001298","HPO_Name__c":"Encephalopathy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A condition characterized by changes in personality and thought patterns, often accompanied by hallucinations and delusional beliefs, is known as psychosis.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000709","HPO_Synonym__c":"Psychosis","HPO_Name__c":"Psychosis","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Body temperature elevated above the normal range.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001945","HPO_Synonym__c":"Fever; Hyperthermia; Pyrexia","HPO_Name__c":"Fever","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An increased level of gamma globulin (immunoglobulin) in the blood.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010702","HPO_Synonym__c":"Elevated immunoglobulin levels; Hypergammaglobulinaemia; Hypergammaglobulinemia; Increased antibody level in blood; Increased circulating antibody concentration; Increased circulating antibody level; Increased gamma globulin; Increased immunoglobulin level; Increased serum gamma globulin; Raised immunoglobulin levels","HPO_Name__c":"Increased circulating immunoglobulin concentration","Feature_System__c":"Immune System; Blood and Blood-Forming Tissue","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Cephalgia, or pain sensed in various parts of the head, not confined to the area of distribution of any nerve.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002315","HPO_Synonym__c":"Headache; Headaches","HPO_Name__c":"Headache","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Loss of the ability to control the urinary bladder leading to involuntary urination.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000020","HPO_Synonym__c":"Bladder incontinence; Loss of bladder control","HPO_Name__c":"Urinary incontinence","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Diplopia is a condition in which a single object is perceived as two images, it is also known as double vision.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000651","HPO_Synonym__c":"Double vision","HPO_Name__c":"Diplopia","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Characteristic neurologic anomaly resulting from degeneration of dopamine-generating cells in the substantia nigra, a region of the midbrain, characterized clinically by shaking, rigidity, slowness of movement and difficulty with walking and gait.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001300","HPO_Name__c":"Parkinsonism","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A movement disorder which consists of effects including diminished voluntary movements and the presence of involuntary movements.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100660","HPO_Synonym__c":"Disorder of involuntary muscle movements; Dyskinesis","HPO_Name__c":"Dyskinesia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Increased susceptibility to viral infections, as manifested by recurrent episodes of viral infection.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004429","HPO_Name__c":"Recurrent viral infections","Feature_System__c":"Immune System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Weakness of the muscles of the arms.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003484","HPO_Synonym__c":"Decreased arm strength; Weak arm","HPO_Name__c":"Upper limb muscle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Involuntary fecal soiling in adults and children who have usually already been toilet trained.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002607","HPO_Synonym__c":"Anal incontinence; Fecal incontinence; Loss of bowel control","HPO_Name__c":"Bowel incontinence","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Hyperventilation refers to an increased pulmonary ventilation rate that is faster than necessary for the exchange of gases. Hyperventilation can result from increased frequency of breathing, an increased tidal volume, or both, and leads to an excess intake of oxygen and the blowing off of carbon dioxide.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002883","HPO_Synonym__c":"Rapid breathing","HPO_Name__c":"Hyperventilation","Feature_System__c":"Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A sensation of tightness in the neck when attempting to move it, especially after a period of inactivity. Neck stiffness often involves soreness and difficulty moving the neck, especially when trying to turn the head to the side.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0025258","HPO_Synonym__c":"Neck stiffness; Stiff neck","HPO_Name__c":"Stiff neck","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Pain in muscle.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003326","HPO_Synonym__c":"Muscle ache; Muscle pain","HPO_Name__c":"Myalgia","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"The complete absence of wakefulness and consciousness, which is evident through a lack of response to any form of external stimuli.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001259","HPO_Synonym__c":"Coma; Persistent vegetative state; Stupor; Unconsciousness","HPO_Name__c":"Coma","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A slower than normal heart rate (in adults, slower than 60 beats per minute).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001662","HPO_Synonym__c":"Brachycardia; Slow heartbeats","HPO_Name__c":"Bradycardia","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Loss of previously present mental abilities, generally in adults.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001268","HPO_Synonym__c":"Cognitive decline; Cognitive decline, progressive; Intellectual deterioration; Mental deterioration; Progressive cognitive decline","HPO_Name__c":"Mental deterioration","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Excessive sensitivity to light with the sensation of discomfort or pain in the eyes due to exposure to bright light.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000613","HPO_Synonym__c":"Extreme sensitivity of the eyes to light; Light hypersensitivity; Photodysphoria","HPO_Name__c":"Photophobia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0005986","HPO_Synonym__c":"Limitation of neck motion; Restricted neck movement","HPO_Name__c":"Limitation of neck motion","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Anomalous movements of the eyes that occur without the subject wanting them to happen.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012547","HPO_Name__c":"Abnormal involuntary eye movements","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Increased concentration of protein in the cerebrospinal fluid.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002922","HPO_Synonym__c":"Cerebrospinal fluid protein increased; Cerebrospinal fluid with increased protein; Elevated cerebrospinal fluid protein; Elevated csf protein; Hyperproteinorrhachia; Increased CSF protein; Increased protein in csf; Spinal fluid protein elevated","HPO_Name__c":"Increased CSF protein concentration","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An unintentional, oscillating to-and-fro muscle movement about a joint axis.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001337","HPO_Synonym__c":"Tremor; Tremors","HPO_Name__c":"Tremor","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The occurrence of an immune reaction against the organism's own cells or tissues.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002960","HPO_Synonym__c":"Autoimmune condition; Autoimmune disease; Autoimmune disorder; Autoimmunity","HPO_Name__c":"Autoimmunity","Feature_System__c":"Immune System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A state of fatigue, either physical or mental slowness and sluggishness, with difficulties in initiating or performing simple tasks. Distinguished from apathy which implies indifference and a lack of desire or interest in the task. A person with lethargy may have the desire, but not the energy to engage in personal or socially relevant tasks.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001254","HPO_Synonym__c":"Dullness; Inaction; Inactivity; Languor; Lethargy; Slowness; Torpor","HPO_Name__c":"Lethargy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001250","HPO_Synonym__c":"Epileptic seizure; Seizures","HPO_Name__c":"Seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:83600","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007146","HPO_Name__c":"Bilateral basal ganglia lesions","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Disease Category":["Neurology"],"Specialist":["Neurology","Epilepsy"],"Account":["Epilepsy","Parkinsonism"]},"synonyms":["epidemic encephalitis"," lethargic encephalitis"," von economo disease"," von economo encephalitis"," von economo's disease"," von economo's encephalitis"]}