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Jin Young Ahn, David Boettiger, Sasisopin Kiertiburanakul, Tuti Parwati Merati, Bui Vu Huy, Wing Wai Wong, Rossana Ditangco, Man Po Lee, Shinichi Oka, Nicolas Durier, Jun Yong Choi
INTRODUCTION: Outbreaks of syphilis have been described among HIV-infected men who have sex with men (MSM) in Western communities, whereas reports in Asian countries are limited. We aimed to characterize the incidence and temporal trends of syphilis among HIV-infected MSM compared with HIV-infected non-MSM in Asian countries. METHODS: Patients enrolled in the TREAT Asia HIV Observational Database cohort and with a negative non-treponemal test since enrolment were analyzed...
2016: Journal of the International AIDS Society
Angela R Rourk, Frederick S Nolte, Christine M Litwin
OBJECTIVES: With the recent introduction of automated treponemal tests, a new reverse syphilis algorithm has been proposed and now used by many clinical laboratories. We analyzed the impact of instituting the reverse screening syphilis algorithm in a laboratory that serves a geographic area with a moderately high prevalence of syphilis infection. METHODS: Serum samples sent for syphilis testing were tested using a treponemal enzyme immunoassay (EIA) as the screening assay...
October 22, 2016: American Journal of Clinical Pathology
Daniel D Rhoads, Jonathan R Genzen, Christine P Bashleben, James D Faix, M Qasim Ansari
CONTEXT: -Syphilis serology screening in laboratory practice is evolving. Traditionally, the syphilis screening algorithm begins with a nontreponemal immunoassay, which is manually performed by a laboratory technologist. In contrast, the reverse algorithm begins with a treponemal immunoassay, which can be automated. The Centers for Disease Control and Prevention has recognized both approaches, but little is known about the current state of laboratory practice, which could impact test utilization and interpretation...
October 20, 2016: Archives of Pathology & Laboratory Medicine
F Sarkodie, O Hassall, E Owusu-Dabo, S Owusu-Ofori, I Bates, I C Bygbjerg, A Owusu-Ofori, L H Harritshøj, H Ullum
BACKGROUND: Syphilis testing conventionally relies on a combination of non-treponemal and treponemal tests. The primary objective of this study was to describe the positive predictive value (PPV) of a screening algorithm in a combination of a treponemal rapid diagnostic test (RDT) and rapid plasma reagin (RPR) test at Komfo Anokye Teaching Hospital (KATH), Ghana. MATERIALS AND METHODS: From February 2014 to January 2015, 5 mL of venous blood samples were taken from 16 016 blood donors and tested with a treponemal RDT; 5 mL of venous blood was taken from 526 consenting initial syphilis sero-reactive blood donors...
October 10, 2016: Transfusion Medicine
Justin D Radolf, Ranjit K Deka, Arvind Anand, David Šmajs, Michael V Norgard, X Frank Yang
The past two decades have seen a worldwide resurgence in infections caused by Treponema pallidum subsp. pallidum, the syphilis spirochete. The well-recognized capacity of the syphilis spirochete for early dissemination and immune evasion has earned it the designation 'the stealth pathogen'. Despite the many hurdles to studying syphilis pathogenesis, most notably the inability to culture and to genetically manipulate T. pallidum, in recent years, considerable progress has been made in elucidating the structural, physiological, and regulatory facets of T...
October 10, 2016: Nature Reviews. Microbiology
Edith Nakku-Joloba, Agnes Kiragga, Joshua Kimeze Mbazira, Fred Kambugu, Mary Jett-Goheen, Rosalind Parkes Ratanshi, Charlotte Gaydos, Yukari C Manabe
A diagnostic performance study comparing the only Food and Drug Administration-approved, point-of-care (POC) treponemal test (Syphilis Health Check) and the World Health Organization pre-qualified SD Bioline POC treponemal test against a treponemal hemagglutination test (TPHA) and a sequential algorithm of nontreponemal rapid plasma reagin and TPHA found both POC tests had >85% sensitivity compared with the TPHA and >85% sensitivity and >95% specificity compared with the rapid plasma reagin and TPHA standards...
October 2016: Sexually Transmitted Diseases
Mónica Franco, Vanda Nogueira
PURPOSE: We report on a case of unilateral acute syphilitic posterior placoid chorioretinitis (ASPPC) with spontaneous resolution of the lesions, and discuss the role of an altered versus adequate immune response as the major pathogenic factor. METHODS: We describe a case of acute loss of visual acuity (VA) in the left eye (LE) in a 55-year-old healthy man. RESULTS: The patient presented with VA of 20/20 in the right eye (RE) and hand movements in the LE...
2016: GMS Ophthalmol Cases
Jodie Dionne-Odom, Rahel Mbah, Nicole J Rembert, Samuel Tancho, Gregory E Halle-Ekane, Comfort Enah, Thomas K Welty, Pius M Tih, Alan T N Tita
Objectives. We estimated seroprevalence and correlates of selected infections in pregnant women and blood donors in a resource-limited setting. Methods. We performed a cross-sectional analysis of laboratory seroprevalence data from pregnant women and voluntary blood donors from facilities in Cameroon in 2014. Rapid tests were performed to detect hepatitis B surface antigen, syphilis treponemal antibodies, and HIV-1/2 antibodies. Blood donations were also tested for hepatitis C and malaria. Results. The seroprevalence rates and ranges among 7069 pregnant women were hepatitis B 4...
2016: Infectious Diseases in Obstetrics and Gynecology
A Leclercq, E Cinotti, B Labeille, B Cribier, A C Biron, C Vermersch, J Montlouis, F Cambazard, J L Perrot
PATIENTS AND METHODS: Herein we report the case of an 18-year-old pregnant patient presenting with plantar and ano-genital lesions of syphilis, pharyngitis, erythematosus and scalynasolabial intertrigo and angular cheilitis. REFLECTANCE CONFOCAL MICROSCOPY: In vivo reflectance confocal microscopy examination (Vivascope 3000(®); Caliber Inc, Rochester, NY, USA, distributed in France by Mavig, Munich) of ano-genital lesions enabled us to identify hyper-reflective elongated rods in the papillary dermis suggesting spirochetes...
August 23, 2016: Annales de Dermatologie et de Vénéréologie
Francesco Drago, Giulia Ciccarese, Carlo F Tomasini, Paola Calamaro, Maurizio Boggio, Alfredo Rebora, Aurora Parodi
We describe herein a woman who developed subcutaneous gummas in her trochanteric regions, bilaterally, although she had been treated for syphilis two decades earlier. Evidence of Treponema pallidum latent late infection was the presence of IgG antibodies against T. pallidum and the positive non-treponemal and treponemal tests. Moreover, immunohistochemical staining for T. pallidum detected some spirochetes close to the atrophic adipocytes allowing the diagnosis of lypo-atrophic panniculitis tertiary syphilis...
August 24, 2016: International Journal of STD & AIDS
Michael Marks, Oliver Sokana, Eli Nachamkin, Elliot Puiahi, Georgina Kilua, Allan Pillay, Christian Bottomley, Anthony W Solomon, David C Mabey
INTRODUCTION: Both yaws and trachoma are endemic in the Pacific. Mass treatment with azithromycin is the mainstay of the WHO strategy for both the eradication of yaws and the elimination of trachoma as a public health problem, but the dose recommended for trachoma is lower than that for yaws. In countries where both diseases are endemic, there is a potential for synergy between yaws and trachoma control programs if mass treatment with the lower dose of azithromycin was shown to be effective for the treatment of yaws...
August 2016: PLoS Neglected Tropical Diseases
A V Runina, A S Starovoitova, D G Deryabin, A A Kubanov
UNLABELLED: BACKGRAUND. Treponemal tests based on the detection of antibodies against the Treponema pallidum antigens are the most specific methods for serological diagnosis of syphilis. Due to the inability to cultivate this bacterium in vitro, the most promising sources of antigens for diagnostics are recombinant proteins of T. pallidum. Evaluation of the analytical value of certain T. pallidum proteins is the approach to improve sensitivity, specificity, and reproducibility of syphilis serological tests, including possibilities of differential diagnosis of various forms of the disease...
2016: Vestnik Rossiĭskoĭ Akademii Meditsinskikh Nauk
Jan F Gogarten, Ariane Düx, Verena J Schuenemann, Kathrin Nowak, Christophe Boesch, Roman M Wittig, Johannes Krause, Sébastien Calvignac-Spencer, Fabian H Leendertz
Treponema pallidum infections causing yaws disease and venereal syphilis are globally widespread in human populations, infecting hundreds of thousands and millions annually respectively; endemic syphilis is much less common and pinta has not been observed in decades. We discuss controversy surrounding the origin, evolution, and history of these pathogens in light of available molecular and anthropological evidence. These bacteria (or close relatives) seem to affect many wild African non-human primate species, though to date only a single non-human primate Treponema pallidum genome has been published, hindering detection of spillover events and our understanding of potential wildlife reservoirs...
August 4, 2016: Clinical Microbiology and Infection
Sascha Knauf, Jane Raphael, Oriol Mitjà, Inyasi A V Lejora, Idrissa S Chuma, Emmanuel K Batamuzi, Julius D Keyyu, Robert Fyumagwa, Simone Lüert, Charmie Godornes, Hsi Liu, Christiane Schwarz, David Šmajs, Philippe Grange, Dietmar Zinner, Christian Roos, Sheila A Lukehart
BACKGROUND: Recently, the World Health Organization launched a campaign to eradicate the tropical disease yaws, caused by the bacterium Treponema pallidum subsp. pertenue; however, for decades researchers have questioned whether flies act as a vector for the pathogen that could facilitate transmission. METHODS: A total of 207 fly specimens were trapped in areas of Africa in which T. pallidum-induced skin ulcerations are common in wild baboons; 88 flies from Tarangire National Park and 119 from Lake Manyara National Park in Tanzania were analyzed by PCR for the presence of T...
September 2016: EBioMedicine
Alessandro Ricardo Caruso da Cunha, Edgar Merchan-Hamann
OBJECTIVE: To estimate the prevalence and investigate the factors associated with syphilis in parturient women in Brazil. METHOD: This nationwide cross-sectional population-based study, with regional representativeness, was carried out with parturient women aged 15 to 49 years delivering babies in public healthcare system/partner maternity facilities between January 2010 and December 2011. Syphilis screening was based on a rapid treponemal test. Diagnostic confirmation was based on the Venereal Disease Research Laboratory (VDRL) test and additional treponemal tests...
December 2015: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
J Kremastinou, V Polymerou, D Lavranos, A Aranda Arrufat, J Harwood, M J Martínez Lorenzo, K P Ng, L Queiros, I Vereb, M Cusini
Treponema pallidum infections can have severe complications if not diagnosed and treated at an early stage. Screening and diagnosis of syphilis require assays with high specificity and sensitivity. The Elecsys Syphilis assay is an automated treponemal immunoassay for the detection of antibodies against T. pallidum The performance of this assay was investigated previously in a multicenter study. The current study expands on that evaluation in a variety of diagnostic settings and patient populations, at seven independent laboratories...
September 2016: Journal of Clinical Microbiology
Gabriela Rosa, Gary W Procop, Jesse D Schold, Melissa P Piliang
BACKGROUND: Although syphilis is uncommon, infection rates are much higher in HIV-infected individuals than the general population. A proposed explanation is impaired cellular immunity with HIV infection. METHODS: A search of one institution yielded 10 patients with a diagnosis of secondary syphilis on skin biopsy, positive syphilis serology and available CD4 counts. We evaluated 11 biopsies from the 10 patients. We correlated the patients' CD4 counts with the histologic findings and with the number of treponemes on skin biopsies, highlighted by immunohistochemistry (IHC)...
October 2016: Journal of Cutaneous Pathology
M Zehnder, D-K Rechenberg, T Thurnheer, H Lüthi-Schaller, G N Belibasakis
This study investigated the possibility to depict individual taxa in clinically relevant biofilms using fluorescent in situ hybridization (FISH). Gutta-percha samples were collected from the apical aspect of root canals associated with a chronic apical abscess (test samples, n = 8). Corresponding control samples were obtained from previously filled root canals with apparently normal periapical tissues (n = 3). The transport medium was investigated for detached biofilm fragments using FISH staining and conventional epifluorescence microscopy...
June 10, 2016: Molecular Oral Microbiology
Amy G Cantor, Miranda Pappas, Monica Daeges, Heidi D Nelson
IMPORTANCE: Screening for syphilis infection is currently recommended for high-risk individuals, including those with previous syphilis infection, an infected sexual partner, HIV infection, or more than 4 sex partners in the preceding year. OBJECTIVE: To update a 2004 systematic review of studies of syphilis screening effectiveness, test accuracy, and screening harms in nonpregnant adults and adolescents. DATA SOURCES: Cochrane Central Register of Controlled Trials and Cochrane Database of Systematic Reviews through October 2015 and Ovid MEDLINE (January 2004 to October 2015), with updated search through March 2016...
June 7, 2016: JAMA: the Journal of the American Medical Association
Dongdong Li, Jingna An, Tingting Wang, Chuanmin Tao, Lanlan Wang
OBJECTIVE: The resurgence of syphilis in recent years has become a serious threat to the public health worldwide, and the serological detection of specific antibodies against Treponema pallidum (TP) remains the most reliable method for laboratory diagnosis of syphilis. The performance of the Elecsys(®) Syphilis assay, a brand new electrochemiluminescene immunoassay (ECLIA), was assessed by large amounts of samples in this study. METHODS: In comparison with InTec assay, the Elecsys(®) Syphilis assay was evaluated in 146 preselected samples from patients with syphilis, 1803 clinical routine samples, and 175 preselected samples from specific populations with reportedly increased rates of false-positive syphilis test results...
May 26, 2016: Journal of Clinical Laboratory Analysis
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