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Any of various slender, spiral, motile bacteria of the order Spirochaetales, many of which are pathogenic, causing syphilis, relapsing fever, yaws, and other diseases.

[New Latin Spīrochaeta, genus name : Latin spīra, coil; see spire2 + New Latin chaeta, bristle, hair; see chaeta.]

spi′ro·chet′al (-kēt′l) adj.


a. espiroquetósico-a, rel. a espiroquetas.
References in periodicals archive ?
The result is that a devastating shower of spirochetal blebs containing OspA floods the bloodstream in many individuals who are bitten by a tick and their immune system is immediately compromised.
Lyme disease, which is caused by a spirochetal bacterium transmitted to humans through the bite of the deer tick, has reached epidemic proportions in areas of the northeastern United States;' says Allen Steere, MD, Principal Investigator of MGH's Center for Immunology and Inflammatory Diseases and Director of Translational Research for the Rheumatology Unit at MGH.
The five miRNAs that were found at low levels among the patients in group 1 were higher in these patients, which "suggested that the nature of the arthritis had changed after spirochetal killing.
These assays use a whole-cell sonicate of B burgdorferi and yield a significant number of false-positive results due to cross-reactive antigens such as flagellar and heat-shock proteins if other spirochetal infections are present.
Spirochetal antigens and lymphoid cell surface markers in Lyme synovitis: comparison with rheumatoid synovium and tonsillar lymphoid tissue.
Bacterial and spirochetal diseases transmitted by them include rick-ettsial diseases such as Rocky Mountain Spotted Fever, ehrlichiosis, and anaplasmosis.
Differential diagnoses of disseminated cutaneous sporotrichosis include fungal, bacterial, mycobacterial and spirochetal infections and inflammatory diseases, e.
burgdorferi genes was detected in host tissues, flaB DNA was acquired by xenodiagnostic ticks, and spirochetal forms could be visualized within ticks and mouse tissues by immunofluorescence and immunohistochemistry, respectively (Figure 5).
Leptospirosis is a sporadic emerging zoonotic disease in Asia and South America caused by motile spirochetal bacterium of genus Leptospira (W.
They cover bacteria diseases, spirochetal diseases, rickettsial diseases, viral diseases, fungal diseases, prions, and parasites.
They feed with human and animal blood, and can transmit pathogens such as rickettsiae and spirochetes, which induce spotted fever, Lyme disease, and spirochetal infectious disease.