babesiosis
Findings
No curated finding names babesiosis yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Babesiosis refers to a condition caused by microscopic parasites that infect the red blood cells. Many people who are infected with Babesia parasites do not experience any symptoms of the condition. When present, signs and symptoms may include flu-like symptoms such as fever, chills, headache, body aches, nausea and fatigue. In severe cases, babesiosis can be associated with hemolytic anemia. Babesia parasites are primarily spread by infected ticks. Treatment is generally only required in people who develop symptoms of the condition. When necessary, affected people are often prescribed a combination of antimicrobial medications along with supportive care to manage symptoms.
Definition from the Mondo Disease Ontology (MONDO:0005661), read 2026-09-29. CC BY 4.0.
Features
32 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- FeverHPOHP:0001945
- Very frequent (80% to 99% of cases)
- HeadacheHPO · MondoHP:0002315
- Very frequent (80% to 99% of cases)
- Hemolytic anemiaHPOHP:0001878
- Very frequent (80% to 99% of cases)
- ArthralgiaHPOHP:0002829
- Frequent (30% to 79% of cases)
- CoughHPOHP:0012735
- Frequent (30% to 79% of cases)
- Decreased total leukocyte countHPOHP:0001882
- Frequent (30% to 79% of cases)
- FatigueHPO
Show the remaining 20
- SplenomegalyHPOHP:0001744
- Frequent (30% to 79% of cases)
- ThrombocytopeniaHPOHP:0001873
- Frequent (30% to 79% of cases)
- AnorexiaHPOHP:0002039
- Occasional (5% to 29% of cases)
- Clinodactyly of the 5th toeHPOHP:0001864
- Occasional (5% to 29% of cases)
- ComaHPOHP:0001259
- Occasional (5% to 29% of cases)
- ConfusionHPOHP:0001289
- Occasional (5% to 29% of cases)
Where it sits
- A kind of
Other names
6 names
Resolves to: babesiosis
- Also called
- Babesia caused disease or disorderBabesia disease or disorderBabesia infectious diseasebabesiasisinfection by Babesiapiroplasmosis