Personal experience + peer-reviewed information about Babesia and tick-associated infections.
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Research library

Babesia research: biology, diagnosis, treatment, persistence, resistance and experimental therapies.

This library prioritizes peer-reviewed papers, major reviews, CDC guidance and IDSA recommendations. Each source is labeled by the question it helps answer so you can move from a claim to the underlying evidence.

Scientific glassware, notebook and botanical materials
Core reviews & guidelines

Start here for the big picture

Vannier & Krause, 2012 — Human Babesiosis, New England Journal of Medicine

High-level review of parasite biology, transmission, epidemiology, clinical manifestations, immunity, diagnosis and treatment.

Read the review →
Vannier, Gewurz & Krause — Human Babesiosis, Infectious Disease Clinics

Detailed review with extensive discussion of human disease and pathogenesis.

Read free full text →
IDSA 2020 Guideline on Diagnosis and Management of Babesiosis

Evidence-graded recommendations for smear/PCR confirmation, antibody interpretation, treatment, exchange transfusion and monitoring.

Read the guideline →
CDC — Clinical Care of Babesiosis

Current U.S. public-health summary of standard therapy and management considerations.

Read CDC guidance →
Diagnosis & persistence

Studies that explain why testing can be confusing

Krause et al., 1998 — Persistent Parasitemia after Acute Babesiosis, NEJM

Longitudinal study showing that low-level parasitemia can persist for months or years, especially when untreated, and that drug therapy shortens—but does not always immediately eliminate—detectable parasitemia.

Read the study →
IDSA diagnostic evidence review

Explains why PCR is more sensitive than smear at low parasite burdens, why hundreds of smear fields may need review, and why one positive antibody test cannot establish active infection.

Read the full guideline paper →
Treatment evidence

Standard treatment, relapse and resistance

Krause et al., 2000 — Atovaquone and Azithromycin for the Treatment of Babesiosis

Randomized trial showing similar efficacy to clindamycin/quinine in uncomplicated disease with substantially fewer reported adverse effects.

Read the trial →
Krause et al., 2008 — Persistent and Relapsing Babesiosis in Immunocompromised Patients

Case-control study identifying B-cell dysfunction, rituximab exposure and splenectomy as major features of persistent/relapsing cases.

Read the study →
Simon et al., 2017 — Atovaquone/Azithromycin resistance in relapsed B. microti

Molecular evidence linking treatment failure with mutations in cytochrome b and ribosomal protein L4.

Read the paper →
Krause et al., 2024 — Tafenoquine for Relapsing Babesiosis

Five-patient case series examining tafenoquine-containing regimens in highly immunocompromised people with difficult relapsing disease.

Read the case series →
Babesia biology

Parasite biology and drug susceptibility

Continuous culture of Babesia duncani in human erythrocytes

Established a human-red-cell culture system and reported relatively low susceptibility of B. duncani to several drugs commonly used for babesiosis.

Read the paper →
Cytochrome bc1 as a drug target in Babesia

Experimental work investigating mitochondrial electron transport as a target and newer endochin-like quinolone compounds.

Read the paper →
B. microti thioredoxin research

Demonstrates antioxidant/redox machinery used by the parasite during the erythrocytic stage.

Open PubMed →
Botanical & experimental evidence

Cryptolepis, artemisinin and ozone-related mechanisms

Zhang et al., 2021 — Botanicals against Babesia duncani

In-vitro testing of Cryptolepis sanguinolenta, Artemisia annua, Scutellaria baicalensis, Japanese knotweed and related compounds.

Read the full paper →
Batiha et al., 2020 — Cryptolepine against multiple Babesia species

In-vitro activity across several Babesia species plus a B. microti mouse model.

Read the PLOS paper →
Elfawal et al., 2021 — Negative artemisinin/A. annua B. microti mouse study

Important counterevidence showing lack of benefit under that experimental protocol.

Read the paper →
Re et al., 2014 — Ozonated serum and NRF2 signaling

Mechanistic human-cell study showing activation of antioxidant-response pathways after exposure to ozonated serum; not a Babesia treatment trial.

Open PubMed →
Khalifa et al., 2001 — Ozone and protozoal viability

Experimental protozoal inactivation study in water. Relevant to ozone's chemical reactivity, but not evidence that medical ozone treats intraerythrocytic Babesia in humans.

Open PubMed →
Evidence hierarchy: a human randomized trial, a case series, an animal study, an in-vitro culture experiment and a mechanistic cell study answer different questions. The existence of a plausible mechanism does not prove clinical efficacy.
Products from my personal experience • affiliate links

Cryptolepis & artemisinin

These are the Amazon-linked products connected to what I personally used. I am sharing them as part of my experience, not as proven babesiosis treatments or dosing recommendations. Browse all recommended products →

Cryptolepis sanguinolentaWhat I personally used

Cryptolepis sanguinolenta

A commercial Cryptolepis product. Laboratory and animal evidence discussed here should not be confused with proven human treatment efficacy.

View Cryptolepis on Amazon
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ArtemisininWhat I personally used

Artemisinin

A commercial Artemisinin product. Experimental evidence discussed here is mixed and does not establish commercial supplements as proven human babesiosis treatment.

View Artemisinin on Amazon
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Amazon disclosure: As an Amazon Associate I earn from qualifying purchases. Buying through an affiliate link may earn Beat Babesia a commission at no additional cost to you.
Products I used + practical support

Products worth knowing about

Cryptolepis and artemisinin are the two products I personally used during my Babesia experience. I am sharing what I used, not prescribing a treatment. The other items are practical support products people may find useful while keeping track of medications, supplements, and hydration.

Cryptolepis sanguinolentaWhat I personally used

Cryptolepis sanguinolenta

The Cryptolepis product I personally used. See the Cryptolepis page for the research, limitations, and my experience.

View Cryptolepis on Amazon
Amazon affiliate link
ArtemisininWhat I personally used

Artemisinin

The artemisinin product I personally used. See the Artemisinin page for the research, limitations, and my experience.

View Artemisinin on Amazon
Amazon affiliate link
Sukuos large weekly AM PM pill organizerPractical support

Large weekly pill organizer

A simple way to keep prescriptions and supplements organized when a routine gets complicated.

View pill organizer on Amazon
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Liquid I.V. Hydration Multiplier electrolyte drink mixPractical support

Hydration / electrolyte packets

Convenient hydration support for people who want an easy electrolyte option. This is not a Babesia treatment.

View hydration packets on Amazon
Amazon affiliate link
Amazon disclosure: As an Amazon Associate I earn from qualifying purchases. Buying through an affiliate link may earn Beat Babesia a commission at no additional cost to you.