raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:91547

Relapsing fever

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
All ages
Status
active

An infectious disease, rare in Europe, characterized by relapsing fever accompanied by headaches, vomiting and myalgia lasting 2-7&nbsp;days, with afebrile intervals of up to 10&nbsp;days. It is caused by bacterial species of the genus <i>Borrelia</i>, and transmitted by ticks (tick-borne relapsing fever; TBRF) and lice (louse-borne relapsing fever; LBRF).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enRelapsing fever
frFièvre récurrente infectieuse
deRückfallfieber
esFiebre recurrente
itFebbre ricorrente
nlTerugkerende koortsFebris recurrens
ptFebre recorrente
plDur powrotny
csNávratná horečka
ukРецидивуюча лихоманка
zh回归热
trTekrarlayan ateş

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10A68.0BTNTspecificvalidated
ICD-10A68.1BTNTspecificvalidated
ICD-10A68.9BTNTspecificvalidated
ICD-111C1JEspecificvalidated
MONDO0019633Evalidated
MeSHD012061Evalidated
UMLSC0035021Evalidated
MedDRA10038300Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

32 annotations · validated 2019-10-25
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0011227Elevated circulating C-reactive protein concentration
HP:0001945Fever
HP:0003573Increased total bilirubin
HP:0001873Thrombocytopenia
Frequent (79-30%)
HP:0001903Anemia
HP:0002910Elevated circulating hepatic transaminase concentration
HP:0002315Headache
HP:0025435Increased circulating lactate dehydrogenase concentration
HP:0001974Increased total leukocyte count
HP:0000952Jaundice
HP:0003326Myalgia
Occasional (29-5%)
HP:0002027Abdominal pain
HP:0001892Abnormal bleeding
HP:0000079Abnormality of the urinary system
HP:0001919Acute kidney injury
HP:0002829Arthralgia
HP:0025143Chills
HP:0012735Cough
HP:0003259Elevated circulating creatinine concentration
HP:0012378Fatigue
HP:0002615Hypotension
HP:0001882Leukopenia
HP:0031179Nuchal rigidity
HP:0001649Tachycardia
HP:0002013Vomiting
Very rare (<4-1%)
HP:0002014Diarrhea
HP:0000421Epistaxis
HP:0000790Hematuria
HP:0002105Hemoptysis
HP:0011899Hyperfibrinogenemia
HP:0011897Neutrophilia
HP:0008151Prolonged prothrombin time

Run the differential on the 4 obligate / very frequent terms

Annotation source: 31187963[PMID]_29016302[PMID]

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Sources for this card