Search Our Scientific Publications & Authors

Rev Soc Bras Med Trop 2021 17;54(suppl 1):e2020663. Epub 2021 May 17.

Ministério da Saúde, Secretaria de Vigilância em Saúde, Brasília, DF, Brasil.

Infections that cause genital ulcers are one of the themes comprising the Clinical Protocol and Therapeutic Guidelines for Comprehensive Care for People with Sexually Transmitted Infections, published by the Brazilian Ministry of Health in 2020. The Protocol and Guidelines have been developed based on scientific evidence and validated in discussions with specialists. This article addresses clinical genital ulcer syndrome caused by sexually transmitted infections and its most common etiological agents: Treponema pallidum (syphilis), herpes simplex virus-2 (genital herpes) and herpes simplex virus-1 (perioral herpes), Haemophilus ducreyi (chancroid), Chlamydia trachomatis serotypes L1, L2 and L3 (lymphogranuloma venereum), and Klebsiella granulomatis (donovanosis). Read More

Indian J Sex Transm Dis AIDS 2020 Jul-Dec;41(2):176-180. Epub 2020 Jul 31.

Department of Dermatology Venereology and Leprology, Government Medical College, Patiala, Punjab, India.

Background: Sexually transmitted infections (STIs) are dynamic and show a variable prevalence in different parts of the country. Moreover, the prevalence changes with time in the same geographical area. It is important to have the knowledge of current trend of STIs and partner notification (PN) rate in a particular area for the effective implementation of preventive and control measures. Read More

Indian J Sex Transm Dis AIDS 2020 Jul-Dec;41(2):162-168. Epub 2020 Jul 31.

Department of Dermatology, B. J. Medical College, Ahmedabad, Gujarat, India.

Context: Sexually transmitted infections (STIs) have a well-established synergistic relationship with human immunodeficiency virus (HIV) infection. Coinfection with HIV and STI can increase the probability of HIV transmission to an uninfected partner by increasing HIV concentrations in genital lesions, genital secretions, or both. Concurrent HIV infection alters the natural history of the classic STIs. Read More

Epidemiol Serv Saude 2021 15;30(spe1):e2020663. Epub 2021 Mar 15.

Ministério da Saúde, Secretaria de Vigilância em Saúde, Brasília, DF, Brasil.

Infections that cause genital ulcers are one of the themes comprising the Clinical Protocol and Therapeutic Guidelines for Comprehensive Care for People with Sexually Transmitted Infections, published by the Brazilian Ministry of Health in 2020. The Protocol and Guidelines have been developed based on scientific evidence and validated in discussions with specialists. This article addresses clinical genital ulcer syndrome caused by sexually transmitted infections, and its most common etiological agents: Treponema pallidum (syphilis), herpes simplex virus-2 (genital herpes) and herpes simplex virus-1 (perioral herpes), Haemophilus ducreyi (chancroid), Chlamydia trachomatis serotypes L1, L2 and L3 (venereal lymphogranuloma), and Klebsiella granulomatis (donovanosis). Read More

Front Immunol 2020 3;11:615402. Epub 2021 Feb 3.

Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States.

The obligate human pathogen causes both cutaneous ulcers in children and sexually transmitted genital ulcers (chancroid) in adults. Pathogenesis is dependent on avoiding phagocytosis and exploiting the suppurative granuloma-like niche, which contains a myriad of innate immune cells and memory T cells. Despite this immune infiltrate, long-lived immune protection does not develop against repeated infections-even with the same strain. Read More

PLoS Negl Trop Dis 2021 02 16;15(2):e0009180. Epub 2021 Feb 16.

Centre Pasteur du Cameroun, Yaounde, Cameroon.

Outbreaks of yaws-like ulcerative skin lesions in children are frequently reported in tropical and sub-tropical countries. The origin of these lesions might be primarily traumatic or infectious; in the latter case, Treponema pallidum subspecies pertenue, the yaws agent, and Haemophilus ducreyi, the agent of chancroid, are two of the pathogens commonly associated with the aetiology of skin ulcers. In this work, we investigated the presence of T. Read More

Int J Dermatol 2021 Jan 5;60(1):e21-e22. Epub 2020 Oct 5.

Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India.

J Infect Chemother 2020 Jul 5;26(7):762-764. Epub 2020 May 5.

Department of Laboratory Medicine, Hyogo Prefectural Kakogawa Medical Center, Kakogawa, Japan.

Acute inguinal lymphadenitis is usually caused by lower extremity infection and sexually transmitted diseases, such as chancroid, lymphogranuloma venereum, genital herpes, or syphilis. Yersinia pseudotuberculosis is a non-spore forming, pleomorphic, non-lactose fermenting Gram negative bacillus and a member of the family Enterobacteriaceae, which is associated with diarrheal diseases. It also causes mesenteric lymphadenitis at the terminal ileum, which can be clinically indistinguishable from acute appendicitis (pseudoappendicitis). Read More

Am Fam Physician 2020 03;101(6):355-361

Georgetown University Medical Center, MedStar Georgetown University Hospital, Washington, DC, USA.

Genital ulcers may be located on the vagina, penis, and anorectal or perineal areas and may be infectious or noninfectious. Herpes simplex virus is the most common cause of genital ulcers in the United States. A diagnosis of genital herpes simplex virus infection is made through physical examination and observation of genital lesions. Read More

Emerg Infect Dis 2020 02;26(2):282-288

Yaws, a neglected tropical disease caused by the bacterium Treponema pallidum subspecies pertenue, manifests as ulcerative skin lesions. Nucleic acid amplification tests, like loop-mediated isothermal amplification (LAMP), are versatile tools to distinguish yaws from infections that cause similar skin lesions, primarily Haemophilus ducreyi. We developed a novel molecular test to simultaneously detect T. Read More

Sex Transm Infect 2020 09 2;96(6):396-398. Epub 2020 Jan 2.

Laboratory Medicine, AZ Sint-Jan AV, Brugge, Belgium.

Objectives: Recent evidence shows that patients using HIV pre-exposure prophylaxis (PrEP) have an increased rate of bacterial STIs, including syphilis, chlamydia and gonorrhoea. Our study aimed to describe the acquisition and the susceptibility for macrolides of in men who have sex with men (MSM) on PrEP.

Methods: We studied all MSM who started PrEP in the AZ Sint-Jan Hospital Bruges from 1 June 2017 to 31 March 2019 with at least one follow-up visit. Read More

Cureus 2019 Dec 16;11(12):e6397. Epub 2019 Dec 16.

Emergency Medicine, Crozer-Keystone Health System, Chester, USA.

Chancroid is a rare infection in the United States and many other developed countries. Infrequently identified as a cause of genital ulcer disease, chancroid's atypical presentation has only been reported in approximately 20 cases annually in the United States since 2011. Infection with the causative organism, Haemophilus ducreyi, leads to an erythematous papule that rapidly evolves into a pustule. Read More

Int J STD AIDS 2019 11;30(13):1340-1343

Dr Ram Manohar Lohia Hospital and Postgraduate Institute of Medical Education and Research, New Delhi, India.

Int J Infect Dis 2020 Feb 16;91:57-59. Epub 2019 Nov 16.

Gynecology and Obstetrics Medical Residency Program at UNIMED Vitória, Vitória, Espírito Santo State, Brazil; Infectious Diseases Post-Graduate Program at Federal University of Espírito Santo, Vitória, Espírito Santo State, Brazil. Electronic address:

Syphilis is a sexually transmitted infection (STI) caused by the bacterium Treponema pallidum and has shown a significant increase in recent decades. It may be associated with other STIs such as soft chancre or chancroid, which is an uncommon infection in Brazil. The presence of ulcerated genital lesions is associated with a higher risk of HIV transmission. Read More

Pan Afr Med J 2019 12;33:190. Epub 2019 Jul 12.

Centre, Hôpital Civil Tétouan, Tétouan, Maroc.

Chancroid (also known as soft chancre and ulcus molle) is a sexually transmitted disease (STD) due to the Ducrey's bacillus (or Haemophilus ducreyi) characterized by chancre at the site of ulcerated inoculation associated with lymphadenopathy. The disease manifests as a small pinkish papule at the site of penetration of the bacterium. After an incubation period ranging from 24 hours to 15 days (on average 5 days). Read More

Pan Afr Med J 2019 11;33:185. Epub 2019 Jul 11.

Centre Hospitalier Régional Tétouan, Tétouan, Maroc.

Chancroid (also known as soft chancre and ulcus molle) is a sexually transmitted disease (STD) due to the Ducrey's bacillus (or Haemophilus ducreyi) characterized by chancre at the site of ulcerated inoculation associated with lymphadenopathy. The disease manifests as a small pinkish papule at the site of penetration of the bacterium. After an incubation period ranging from 24 hours to 15 days (on average 5 days). Read More

Clin Colon Rectal Surg 2019 Sep 22;32(5):358-363. Epub 2019 Aug 22.

Division of Colon and Rectal Surgery, Keck School of Medicine at the University of Southern California, Los Angeles, California.

This article provides a practical overview for the management of nonviral sexually transmitted diseases affecting the perianal and anorectal regions. Clinical manifestations, diagnosis, and treatment of syphilis, gonorrhea, chancroid, donovanosis, and lymphogranuloma venereum are individually addressed. Read More

J Emerg Med 2019 Dec 3;57(6):e197-e198. Epub 2019 Sep 3.

Department of Emergency Medicine, Mount Sinai Hospital, New York, New York.

J Cutan Med Surg 2019 Nov/Dec;23(6):624-634. Epub 2019 Jun 28.

Division of Dermatology, Department of Medicine, Women's College Hospital, University of Toronto, ON, Canada.

Genital ulcer disease can be caused by a wide variety of sources. Most commonly, genital ulcer disease is grouped into infectious and noninfectious causes. HSV, syphilis, lymphogranuloma venereum, and chancroid represent some common infectious ulcers. Read More

mBio 2019 06 18;10(3). Epub 2019 Jun 18.

Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA

A major gap in understanding infectious diseases is the lack of information about molecular interaction networks between pathogens and the human host. causes the genital ulcer disease chancroid in adults and is a leading cause of cutaneous ulcers in children in the tropics. We developed a model in which human volunteers are infected on the upper arm with until they develop pustules. Read More

Infect Immun 2019 07 20;87(7). Epub 2019 Jun 20.

Department of Microbiology and Immunology, Indiana University School of Medicine, Indiana University, Indianapolis, Indiana, USA

causes chancroid and is a major cause of cutaneous ulcers in children. Due to environmental reservoirs, both class I and class II strains persist in cutaneous ulcer regions of endemicity following mass drug administration of azithromycin, suggesting the need for a vaccine. The hemoglobin receptor (HgbA) is a leading vaccine candidate, but its efficacy in animal models is class specific. Read More

Ann Pharmacother 2019 06 17;53(6):639-651. Epub 2018 Dec 17.

1 University of South Carolina College of Pharmacy, Columbia, SC, USA.

Objective: To review the treatment of common bacterial and viral infections occurring in the pregnant patient.

Data Sources: A literature search of MEDLINE was performed (inception to October 2018). The Centers for Disease Control and Prevention website was utilized for additional information. Read More

Indian J Dermatol 2018 Nov-Dec;63(6):502-505

Department of Pediatrics, Base Hospital, New Delhi, India.

Background: Sexually transmitted infections (STIs) have a definite role in the facilitation of HIV infection, which, in turn, also increases susceptibility to other STIs. Further, the social stigma and secrecy surrounding STIs create difficulty in estimating its true incidence and prevalence.

Objective: The objective of this study was to know the pattern of diseases including different clinical presentations and final diagnosis among the STI clinic attendees. Read More

Hautarzt 2018 Nov;69(11):945-959

Department of Dermatology, Preah Kossamak-Hospital, BP 1006, Phnom Penh, Kambodscha.

Sexually transmitted infections (STI) are common all over the world and the incidence of chlamydia, gonorrhea, syphilis and trichomoniasis alone is estimated at 500 million/year. Of these infections 75% occur in tropical countries in Latin America, sub-Saharan Africa and South as well as Southeast Asia. The bacterial infections chancroid, lymphogranuloma venereum (LGV) and granuloma inguinale (GI, Donovanosis) are termed tropical STI. Read More

Can Bull Med Hist 2018 1;35(2):337-356. Epub 2018 Oct 1.

Department of History, Queen's University.

The Sexually Transmitted Disease Inoculation Study of the United States Public Health Service (USPHS) was a short-term deliberate exposure experiment into the prevention of venereal diseases. Between 1946 and 1948, over 1,300 Guatemalan prisoners, psychiatric patients, soldiers, and sex workers were exposed to syphilis, gonorrhoea, and chancroid. USPHS researchers initially proposed hiring sex workers to "naturally" transmit venereal diseases to male subjects who would then be given various prophylaxes. Read More

Ger Med Sci 2018 13;16:Doc03. Epub 2018 Aug 13.

Epidemiology, QuintilesIMS, Frankfurt, Germany.

The goal of this retrospective analysis was to study the prevalence and treatment of the most common sexually transmitted infections (STI) in men followed by urologists in Germany. This study included a total of 347,090 men followed in 71 urology practices in Germany between 2013 and 2015. The first outcome was the prevalence of individuals diagnosed with STI between 2013 and 2015. Read More