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Vancomycin and Ceftriazone a Viable Combination for Borrelia Infections

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Editor’s Note: Lyme-literate physicians and researchers believe that “Post Treatment Lyme Disease Syndrome” does not exist, and that the presence of ongoing infection, which persists despite many weeks or months of antibiotics, is the cause of ongoing symptoms. 

Identifying vancomycin as an effective antibiotic for killing Borrelia burgdorferi.


Borrelia burgdorferi is the causative agent of Lyme borreliosis. Antibiotic therapy of early acute infection is effective for most patients, but 10-20% go on to develop Post-Treatment Lyme Disease Syndrome. The nature of PTLDS remains unknown, but currently approved antibiotics for treatment of Lyme disease do not appear to impact these symptoms after they have developed. We reason that minimizing the time the pathogen interacts with the host will diminish the probability of developing PTLDS, irrespective of its nature.

This calls for an efficient eradication of the pathogen during acute infection. In search of a superior killing antibiotic, we examined approved antibiotics for their ability to kill B. burgdorferi Vancomycin proved more effective in killing the pathogen in vitro than ceftriaxone, the standard of care for disseminated B. burgdorferi infection. Both compounds were also the most effective in killing stationary phase cells. This is surprising, given that inhibitors of cell wall biosynthesis are known to only kill growing bacteria. We found that peptidoglycan synthesis continues in stationary cells of B. burgdorferi, explaining this paradox.

A combination of vancomycin and gemifloxacin sterilized a stationary phase culture of B. burgdorferi. Examination of the action of antibiotics in immune-deficient SCID mice showed that doxycycline, a standard of care for uncomplicated acute infection, did not clear the pathogen. By contrast, both ceftriaxone and vancomycin cleared the infection. A trial examining early use of more potent antibiotics on development of PTLDS may be warranted.

Source: By Wu X1, Sharma B2, Niles S1, O’Connor K1, Schilling R1, Matluck N1, D’Onofrio A1, Hu LT2, Lewis K3. Identifying vancomycin as an effective antibiotic for killing Borrelia burgdorferi. Antimicrob Agents Chemother. 2018 Aug 20. pii: AAC.01201-18. doi: 10.1128/AAC.01201-18. [Epub ahead of print]

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By CStrasheim

Connie Strasheim is the author of multiple wellness books, including three on Lyme disease. She is also a medical copywriter, editor and healing prayer minister. Her passion is to help people with complex chronic illnesses find freedom from disease and soul-spirit sickness using whole body medicine and prayer, and she collaborates with some of the world’s best integrative doctors to do this. In addition to Lyme disease, Connie’s books focus on cancer, nutrition, detoxification and spiritual healing. You can learn more about her work at: ConnieStrasheim.com.

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