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Analysis of females with Chlamydia trachomatis infections attending a sexually transmissible infection clinic in Singapore in 2010

Low LC, Tan FL, Chan E, Chio M, Chan R, Sen P

Sex Health, 2013 Nov;10(5):470-1.
PMID: 24074902 DOI: 10.1071/SH13095

BACKGROUND: Chlamydia (Chlamydia trachomatis) is the most commonly diagnosed sexually transmissible infection (STI) in Singapore, with rising incidence.
METHOD: Random sampling was performed on all chlamydia-positive samples collected from female patients who attended a women's clinic from January 2010 to December 2010. Some 250 electronic medical records were analysed. Population demographics, sexual histories, symptoms, diagnostic methods and management were recorded.
RESULTS: One hundred and forty-two (56.8%) patients were under 25 years of age. The predominant race diagnosed with Chlamydia cervicitis were Chinese (116 cases, 46.4%) followed by 86 (34.4%) Malays and 20 (8%) Filipinos. Sixty-three (25.2%) were skilled workers and (47) 18.8% were students. Professionals and office workers together formed 68 (27.2%) of the patients. Some 248 (99.2%) patients were heterosexual and 2 (0.8%) patients were bisexual; 229 (91.6%) patients had regular partners, 18 (7.2%) had casual partners and 3 (1.2%) had both. Concurrency prevalence accounted for 49 cases (19.6%) and condom use was less common. Patients were generally asymptomatic, with 114 (45.5%) presenting with symptoms. One hundred and eight (43.2%) patients had 2-5 sexual partners in their lifetime. Patients with a termination made up 12% of our cohort. This episode of infection was the first diagnosis of an STI for 198 (79.2%) patients; 24 (9.6%) of patients had been previously diagnosed with chlamydia.
CONCLUSION: Chlamydia infection was most prevalent in skilled workers and their regular partners with heterosexual practices under 25 years old. Most patients had 2-5 sexual partners and did not use condoms consistently or at all.

Matched MeSH terms: Chlamydia Infections/drug therapy*
Fulltext Chlamydia pneumoniae respiratory infection in a child--a case report

Lum L, Ngeow YF

Med J Malaysia, 1992 Dec;47(4):309-10.
PMID: 1303485

A case of respiratory infection in a child due to Chlamydia pneumoniae is reported. The diagnosis was made by the detection of chlamydial antigen in the tracheal secretion and a significant increase in C. pneumoniae antibody titre. The infection responded well to erythromycin therapy.

Matched MeSH terms: Chlamydia Infections/drug therapy
Fulltext Mycoplasma genitalium in Singapore is associated with Chlamydia trachomatis infection and displays high macrolide and Fluoroquinolone resistance rates

Hart T, Tang WY, Mansoor SAB, Chio MTW, Barkham T

BMC Infect Dis, 2020 Apr 28;20(1):314.
PMID: 32345231 DOI: 10.1186/s12879-020-05019-1

BACKGROUND: Mycoplasma genitalium is an emerging sexually transmitted infection, with increasing rates of resistance to fluroquinolones and macrolides, the recommended treatments. Despite this, M. genitalium is not part of routine screening for Sexually Transmitted Infections (STIs) in many countries and the prevalence of infection and patterns of disease remain to be determined in many populations. Such data is of particular importance in light of the reported rise in antibiotic resistance in M. genitalium isolates.
METHODS: Urine and urethral swab samples were collected from the primary public sexual health clinic in Singapore and tested for C. trachomatis (CT) or N. gonorrhoeae (NG) infection and for the presence of M. genitalium. Antibiotic resistance in M. genitalium strains detected was determined by screening for genomic mutations associated with macrolide and fluroquinolone resistance.
RESULTS: We report the results of a study into M. genitalium prevalence at the national sexual health clinic in Singapore. M. genitalium was heavily associated with CT infection (8.1% of cases), but present in only of 2.4% in CT negative cases and not independently linked to NG infection. Furthermore, we found high rates of resistance mutations to both macrolides (25%) and fluoroquinolones (37.5%) with a majority of resistant strains being dual-resistant. Resistance mutations were only found in strains from patients with CT co-infection.
CONCLUSIONS: Our results support targeted screening of CT positive patients for M. genitalium as a cost-effective strategy to reduce the incidence of M. genitalium in the absence of comprehensive routine screening. The high rate of dual resistance also highlights the need to ensure the availability of alternative antibiotics for the treatment of multi-drug resistant M. genitalium isolates.

Matched MeSH terms: Chlamydia Infections/drug therapy

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