Kisho is an information platform, not a medical provider. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. All content is aggregated from publicly available sources (including ClinicalTrials.gov, PubMed, FDA.gov, and Orphanet) and is provided for informational purposes only. Clinical trial eligibility, treatment decisions, and any health-related actions should always be discussed with a qualified healthcare professional. Kisho does not endorse any specific therapy, organization, or clinical trial. Terms of use · Privacy policy
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.
Features include very common findings: Red blood cell destruction (hemolytic anemia), Fever, and Headache; and common findings: Jaundice, Excessive sweating (hyperhidrosis), Enlarged spleen (splenomegaly), and Low platelet count (thrombocytopenia) and others. 31 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Digestive system | 6 | Jaundice, Hepatic failure, Enlarged spleen (splenomegaly) |
Biomarker and diagnostic research for babesiosis has been reported in the published literature.
No approved treatments are currently available for babesiosis. An additional 1 compound holds orphan drug designation.
While no drugs are FDA-approved specifically for babesiosis, some of the following designated compounds may be used off-label in clinical practice. Treatment decisions should be made in consultation with a specialist familiar with this condition.
The following drugs have received orphan drug designation from the FDA for babesiosis. Orphan designation reflects regulatory interest and does not indicate approval for treatment.
Brand Name | Generic Name | Sponsor |
|---|
Phenotype severity distribution: 3 very common features, 11 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
3 clinical trials registered, 3 recruiting. Interventions under study include drug therapy and other interventions. Pipeline includes 2 PHASE2. Research is sponsored by a mix of industry and academic institutions.
377 publications have been identified in PubMed for babesiosis. Kisho has analyzed 53 by research type. Research spans Review / Meta-Analysis (40%), Basic Science / Preclinical (23%), and Epidemiology / Natural History (17%).
Research Type | Count | % of Total |
|---|---|---|
Research summaries | 21 |
Data assembled from 6 of 12 sources · Last updated Sep 18, 2026, 11:28 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about babesiosis
Blood and immune system |
6 |
Enlarged spleen (splenomegaly), Low platelet count (thrombocytopenia), Red blood cell destruction (hemolytic anemia) |
Brain and nerves | 3 | Depression, Headache, Fatigue |
Bones and joints | 2 | Limitation of joint mobility, Arthralgia |
Muscles | 2 | Limitation of joint mobility, Myalgia |
Heart and blood vessels | 2 | Congestive heart failure, Myocardial infarction |
Kidneys and urinary system | 1 | Reduced kidney function (renal insufficiency) |
Skin | 1 | Excessive sweating (hyperhidrosis) |
Arms and legs | 1 | Clinodactyly of the 5th toe |
Metabolism | 1 | Fever |
Lungs and breathing | 1 | Difficulty breathing (respiratory insufficiency) |
Exclusivity End |
|---|
Designation Status |
|---|
Tafenoquine | Tafenoquine | 60 Degrees Pharmaceuticals, Inc. | 2024 | — | Designated |
Tafenoquine is referenced in active clinical trials for babesiosis (designated 2024).
Gene therapy approaches for babesiosis have been reported in the published literature.
3 trials found
Laboratory research | 12 | 23% |
Disease patterns and progression | 9 | 17% |
Patient case studies | 5 | 9% |
Other research | 2 | 4% |
Testing and diagnosis research | 2 | 4% |
Clinical study results | 1 | 2% |
New treatment approaches | 1 | 2% |
Strle F (2026). [PMID: 41888159](https://pubmed.ncbi.nlm.nih.gov/41888159/). *Nat Rev Dis Primers*. [Review / Meta-Analysis]
STOP-BABESIOSIS Investigators (2026). [PMID: 41910966](https://pubmed.ncbi.nlm.nih.gov/41910966/). *JAMA Intern Med*. [Clinical Trial Publication]
Kakoullis L (2025). [PMID: 39873391](https://pubmed.ncbi.nlm.nih.gov/39873391/). *Clin Infect Dis*. [Epidemiology / Natural History]
Singh P (2025). [PMID: 40531988](https://pubmed.ncbi.nlm.nih.gov/40531988/). *Sci Adv*. [Basic Science / Preclinical]
Fatima N (2025). [PMID: 40261999](https://pubmed.ncbi.nlm.nih.gov/40261999/). *WMJ*. [Other]
Haldar K (2025). [PMID: 39853128](https://pubmed.ncbi.nlm.nih.gov/39853128/). *Microbiol Mol Biol Rev*. [Review / Meta-Analysis]
Wang X (2025). [PMID: 40105678](https://pubmed.ncbi.nlm.nih.gov/40105678/). *Immun Inflamm Dis*. [Case Report / Case Series]
DiGiulio M (2025). [PMID: 40716804](https://pubmed.ncbi.nlm.nih.gov/40716804/). *Nurs Clin North Am*. [Review / Meta-Analysis]
Fu BK (2025). [PMID: 41333613](https://pubmed.ncbi.nlm.nih.gov/41333613/). *Transbound Emerg Dis*. [Review / Meta-Analysis]
Zhu Y (2025). [PMID: 40620758](https://pubmed.ncbi.nlm.nih.gov/40620758/). *China CDC Wkly*. [Review / Meta-Analysis]
AI-curated news mentioning babesiosis
Updated Jul 24, 2026
A recent study highlights a case of babesiosis presenting as secondary hemophagocytic lymphohistiocytosis in a patient undergoing B cell-depleting therapy. This finding underscores the need for awareness of atypical presentations of babesiosis in immunocompromised patients.
A systematic review and meta-analysis reveals the continental distribution of Theileria and Babesia species in African wild mammals. This research enhances understanding of these pathogens' prevalence and could inform future studies on their impact on wildlife health.
A recent case report highlights an atypical presentation of babesiosis, specifically a splenic infarct. This finding may enhance understanding of the disease's manifestations and improve diagnostic accuracy.
A collaborative study reveals that Babesia, a tickborne parasite, is being transmitted through blood transfusions, posing a risk to the U.S. blood supply. This finding is based on data collected over the past three decades.