INTRODUCTION: Although pre-exposure prophylaxis (PrEP) has been available in Singapore since 2016, its uptake among gay, bisexual and other men-who-have-sex-with-men (GBMSM) is low. The iPARTY study was established to evaluate the acceptability and feasibility of PrEP and a PrEP teleconsultation service for young GBMSM aged 18 to 29 years. METHOD: A total of 53 young GBMSM were enrolled in the iPARTY study. They had a total of 5 in-person consultations and teleconsultations, at 12-week intervals. Laboratory tests and quarterly baseline surveys were performed to assess PrEP adherence, sexual behaviour, and incidence of human immunodeficiency virus (HIV) and other sexually transmitted infections (STIs). RESULTS: Thirty-five participants completed the entire 12-month follow-up. Most participants had positive experiences with PrEP teleconsultations. There was a statistically significant fall in participants' aggregate Patient Health Questionnaire-9 scores throughout the study. Self-reported PrEP adherence decreased over the course of the study, denoting improved mental health. Although self-reported condom use for anal intercourse and participants' risk perception of HIV decreased after PrEP adoption, there was no statisti-cally significant increase in STI incidence. CONCLUSION This pilot project has shown that PrEP services provide an opportunity for YMSM to access sexual health testing, treatment and counselling, and may even have tangible benefits on the mental health of this population. Teleconsultation is shown to be a suitable platform for the delivery of such services. Collaborative initiatives are crucial to further enhance the affordability and accessibility of PrEP in Singapore, and to improve patient adherence.
Adolescent ; Adult ; Humans ; Male ; Young Adult ; Anti-HIV Agents/administration & dosage* ; Feasibility Studies ; Health Risk Behaviors ; HIV Infections/psychology* ; Incidence ; Medication Adherence ; Mental Health/statistics & numerical data* ; Pilot Projects ; Pre-Exposure Prophylaxis/statistics & numerical data* ; Sexual and Gender Minorities/statistics & numerical data* ; Sexually Transmitted Diseases/prevention & control* ; Singapore/epidemiology* ; Telemedicine/statistics & numerical data* ; Homosexuality, Male/statistics & numerical data*

INTRODUCTION: Paediatric sexual assault (SA) victims should be assessed for post-exposure prophylaxis (PEP) to mitigate the risk of sexually transmitted infections (STIs). We describe the clinical characteristics of children and young persons (CYPs) presenting with SA at KK Women's and Children's Hospital in Singapore, viral PEP (human immunodeficiency virus [HIV] and hepatitis B virus [HBV]) prescribing practices, and STI evaluation at follow-up. METHOD: Medical records of CYPs ≤16 years who presented with SA between January 2022 and August 2023 were reviewed, including assault and assailant characteristics, baseline and follow-up STI screening, PEP prescription, adherence and follow-up attendance. CYPs with SA in the preceding 72 hours by HIV-positive or HIV-status unknown assailants with high-risk characteris-tics were eligible for HIV PEP. RESULTS: We analysed 278 CYPs who made 292 SA visits. There were 40 (13.7%) CYPs eligible for HIV PEP, of whom 29 (82.9%) received it. Among those tested at baseline, 9% and 34.9% of CYPs tested positive for Chlamydia trachomatis and Gardnerella vaginalis, respectively. None tested positive for Neisseria gonorrhoeae, Trichomonas vaginalis, HIV, HBV or hepatitis C. Majority of CYPs tested were HBV non-immune (n=167, 67.6%); only 77 (46.1%) received the vaccine. Out of 27 CYPs eligible for HBV PEP with immunoglobulin, only 21 (77.7%) received immunoglobulin. A total of 37 CYPs received HIV PEP, including 8 who were retrospectively deemed ineligible. Only 10 (27%) completed the course. Overall, 153 (57.7%) CYPs attended follow-up, and none seroconverted for HIV or HBV. CONCLUSION We report suboptimal rates of HBV post-exposure vaccination, and low compliance to HIV PEP and follow-up among paediatric SA victims. Factors contri-buting to poor compliance should be examined to optimise care for this vulnerable population.
Humans ; Post-Exposure Prophylaxis/methods* ; Female ; Child ; Adolescent ; Singapore/epidemiology* ; HIV Infections/prevention & control* ; Male ; Sexually Transmitted Diseases/epidemiology* ; Retrospective Studies ; Hepatitis B/prevention & control* ; Follow-Up Studies ; Child, Preschool ; Sex Offenses/statistics & numerical data* ; Child Abuse, Sexual

Chlamydia is an obligate intracellular pathogen that causes a wide range of diseases in humans and animals. Chlamydia infection often causes inflammatory response of the body, which seriously affects the health of the host. Cytokines, as key molecules of immune regulation, play an important role in Chlamydia-induced inflammation. Proinflammatory cytokines, such as tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β), IL-6 and interferon γ (IFN-γ), are rapidly activated in the early stage of Chlamydia-induced infection, participating in the recruitment of immune cells to the site of infection and initiating inflammatory response; IL-10 and transforming growth factor β (TGF-β) regulate the activation and function of immune cells in the late stage of inflammation, thus affecting the development of inflammation. There are complex interactions and regulatory mechanisms among cytokines. This review summarizes the role of cytokines in Chlamydia-induced inflammation, and provides an important theoretical basis for the diagnosis and treatment of Chlamydia infection related diseases and the development of vaccines.
Humans ; Cytokines/metabolism* ; Chlamydia Infections/microbiology* ; Animals ; Inflammation/microbiology* ; Chlamydia/immunology*

This study primarily aimed to investigate the prevalence of human papillomavirus (HPV) and other common pathogens of sexually transmitted infections (STIs) in spermatozoa of infertile men and their effects on semen parameters. These pathogens included Ureaplasma urealyticum, Ureaplasma parvum, Chlamydia trachomatis, Mycoplasma genitalium , herpes simplex virus 2, Neisseria gonorrhoeae, Enterococcus faecalis, Streptococcus agalactiae, Pseudomonas aeruginosa , and Staphylococcus aureus . A total of 1951 men of infertile couples were recruited between 23 March 2023, and 17 May 2023, at the Department of Reproductive Medicine of The First People's Hospital of Yunnan Province (Kunming, China). Multiplex polymerase chain reaction and capillary electrophoresis were used for HPV genotyping. Polymerase chain reaction and electrophoresis were also used to detect the presence of other STIs. The overall prevalence of HPV infection was 12.4%. The top five prevalent HPV subtypes were types 56, 52, 43, 16, and 53 among those tested positive for HPV. Other common infections with high prevalence rates were Ureaplasma urealyticum (28.3%), Ureaplasma parvum (20.4%), and Enterococcus faecalis (9.5%). The prevalence rates of HPV coinfection with Ureaplasma urealyticum, Ureaplasma parvum, Chlamydia trachomatis, Mycoplasma genitalium , herpes simplex virus 2, Neisseria gonorrhoeae, Enterococcus faecalis, Streptococcus agalactiae , and Staphylococcus aureus were 24.8%, 25.4%, 10.6%, 6.4%, 2.4%, 7.9%, 5.9%, 0.9%, and 1.3%, respectively. The semen volume and total sperm count were greatly decreased by HPV infection alone. Coinfection with HPV and Ureaplasma urealyticum significantly reduced sperm motility and viability. Our study shows that coinfection with STIs is highly prevalent in the semen of infertile men and that coinfection with pathogens can seriously affect semen parameters, emphasizing the necessity of semen screening for STIs.
Humans ; Male ; Infertility, Male/epidemiology* ; Coinfection/microbiology* ; Papillomavirus Infections/virology* ; Adult ; Sexually Transmitted Diseases/complications* ; China/epidemiology* ; Staphylococcus aureus/isolation & purification* ; Chlamydia trachomatis/isolation & purification* ; Prevalence ; Mycoplasma genitalium/isolation & purification* ; Ureaplasma urealyticum/isolation & purification* ; Neisseria gonorrhoeae/isolation & purification* ; Enterococcus faecalis/isolation & purification* ; Streptococcus agalactiae/isolation & purification* ; Herpesvirus 2, Human/genetics* ; Pseudomonas aeruginosa/isolation & purification* ; Semen/virology* ; Sperm Motility ; Spermatozoa/microbiology* ; Human Papillomavirus Viruses

Bowenoid papulosis (BP) is an uncommon yet clinically significant human papillomavirus (HPV)-associated condition that exhibits features of both condyloma acuminata and carcinoma insitu. We report the case of a 24-year-old Filipino male with multiple pruritic, pigmented penile lesions of 5 months’ duration, confirmed histologically as BP. This case underscores the importance of recognizing HPV-related lesions early and initiating appropriate treatment, not only to prevent progression to malignancy but also to limit transmission. The report also highlights the relevance of offering HPV vaccination, particularly to males, and the critical need for screening for other sexually transmitted infections, especially in light of the growing human immunodeficiency virus epidemic in the Philippines, underscoring that the condition itself may be sexually transmitted in nature.

OBJECTIVE

To describe the clinical presentation, management and outcome of a rare case of isolated oculomotor nerve palsy in an immunocompromised adult secondary to a central nervous system (CNS) tuberculoma.

This is a case report.

A Filipino male in his 30s developed severe throbbing headache followed by binocular diplopia and drooping of the right upper eyelid. Findings were compatible with a neurologically-isolated pupil-involving, complete oculomotor nerve palsy on the right. Brain magnetic resonance imaging demonstrated enlargement and contrast enhancement of the cisternal portion of the right oculomotor nerve. Serologic testing was positive for the human immunodeficiency virus (HIV) and syphilis. Cerebrospinal fluid (CSF) analysis showed lymphocytic pleocytosis and elevated protein. CSF polymerase chain reaction was positive for Mycobacterium tuberculosis (TB). The patient was treated with penicillin, quadruple anti-Koch’s, and anti-retrovirals. Eyelid position and ocular motility improved after treatment. Aberrant regeneration of the right oculomotor nerve was observed with elevation of the right eyelid on downgaze (pseudo-Graefe sign).

CNS tuberculoma may present as a neurologically-isolated oculomotor nerve palsy, particularly in immunocompromised individuals. In TB-endemic countries, like the Philippines, it should be considered in the differential diagnosis. Early recognition and appropriate antimicrobial therapy can lead to neurologic improvement.

Syphilis is one of the most common sexually transmitted diseases in the world. It is known as “the great mimicker” due to its varied cutaneous presentations, which can make it challenging to diagnose. We report a case of a 20‑year‑old female presenting with a nonhealing, pruritic, annular plaque on the left malar area of 3‑month duration. She was initially treated as a case of tinea faciei. The lesion was unresponsive to topical antifungals and steroids with continued increase in size and number. Skin biopsy revealed secondary syphilis with histopathologic features of granuloma annulare. Degenerated collagen, not a feature of secondary syphilis, was seen, prompting further studies to confirm the diagnosis of secondary syphilis. Alcian blue stain was negative, which helped rule out granuloma annulare. She was then given benzathine penicillin G 2.4 million U, which led to a significant decrease in the size of the lesion noted 1 week posttreatment. Only postinflammatory hyperpigmentation was noted after 1 month of treatment. Clinically, secondary syphilis may present as an annular lesion that can mimic tinea. This can also present with atypical histopathologic features and an in‑depth investigation is needed to further confirm the diagnosis.
Granuloma Annulare ; Syphilis

Nodular syphilis with a granulomatous inflammatory histopathologic pattern is an uncommon cutaneous presentation of secondary syphilis which could pose a diagnostic challenge for clinicians and pathologists alike.

A 33-year-old male diagnosed with HIV presented with a 5-week history of asymptomatic generalized erythematous papules and nodules with overlying scales, with involvement of the palms and soles. Histopathologic examination of a nodule from the forearm revealed non-caseating granulomas in a background of a mixed cell inflammatory infiltrate composed of lymphocytes, epithelioid and foamy histiocytes, plasma cells, neutrophils, and multinucleated giant cells. Warthin-Starry Stain revealed spirochetal organisms, while Fite-Faraco and Periodic Acid-Schiff stains were negative for acid-fast bacilli and fungal elements, respectively. Rapid plasma reagin (RPR) was reactive (1:256). Patient was given a single dose of benzathine penicillin G 2.4 million units intramuscularly, with noted complete resolution of skin lesions as well as an 8-fold decrease in RPR titers.

Nodular lesions are an uncommon cutaneous manifestation of secondary syphilis, and the associated histopathologic finding of granulomatous inflammatory pattern is also unusual, posing a diagnostic challenge. With the increasing prevalence of syphilis, especially among HIV patients, dermatologists, dermatopathologists, internists, and infectious disease specialists should be aware of such presentations of syphilis.

Essential alopecia syphilitica (AS) is a rare presentation of secondary syphilis, known to affect 3-7% of the population. To the best of our knowledge, this is the first reported case in the country. Herein we present a rare case of alopecia syphilitica in a 27-year-old MSM.

A 27-year-old male presented with a 3-week history of irregularly-shaped, moth-eaten appearing alopecia without any history or presence of mucosal ulcers and copper penny-looking macules and plaques on the palms and soles. History-taking revealed multiple casual unprotected sexual practices. Syphilis enzyme immunoassay and rapid plasma reagin titer were reactive. Biopsy was consistent with syphilitic alopecia.

Syphilis, a highly prevalent STI presents in different spectra. Patients usually present with copper penny-looking erythematous to hyperpigmented macules and plaques on palms and soles, condylomata lata, erythematous papules and plaques on the trunk, and rarely as moth-eaten alopecia. Atypical presentation might lead to a missed diagnosis and untreated disease. This may give rise to an infectious and potentially debilitating deadly disease.

AS may be mistaken as any other alopecia. Keen clinical eye, high index of suspicion, thorough history-taking with emphasis on sexual history and complete physical exam are needed to prevent missed diagnoses in these cases. Prompt treatment, close follow-up and proper counselling are essential to completely diagnose and treat.

Congenital syphilis is a worldwide public health concern. This occurs when an infected mother transmits the infection to the fetus during pregnancy or at birth.

We present a case of a 6-day-old male, term, born to a mother with secondary syphilis, via normal spontaneous delivery. Upon birth, patient was well and not in cardiorespiratory distress. However, cutaneous examination revealed multiple, well-defined vesicles and pustules on an erythematous background, some topped with erosions and crusts on the scalp, face, extremities, and trunk. Laboratory work-up and imaging were done which revealed congenital syphilis. He was managed with intravenous Penicillin (100,000iu) 160,000 IV for ten days, and wound healing was hastened by use of a coconut-based cellulose wound dressing on the erosions. He was then referred to a multispecialty team to assess and co-manage possible complications. Regular interval follow-up and repeat laboratory tests were advised for observation and for monitoring.

Congenital syphilis is caused by the bacterium Treponema pallidum. Sequelae include preterm birth, low birth weight, skin lesions, bone deformities, hepatosplenomegaly, anemia, and neurological problems. Diagnosis can be made on clinical suspicion combined with Rapid Plasma Reagin (RPR) and Venereal Disease Research Laboratory (VDRL). Aside from Penicillin G, wound care, nutritional build up, and close monitoring of growth and development with regular follow-ups are essential aspects in the management of congenital syphilis. With timely and adequate treatment, infants have a higher likelihood of complete resolution of symptoms, prevention of long-term complications, and improved overall health outcomes.