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Autumn 2016, Vol. 24 No. 3

Hong Kong J. Dermatol. Venereol. (2016) 24, 113-119


Original Article

Screening of asymptomatic Chlamydia trachomatis and Neisseria gonorrhoeae infections among men who have sex with men in Hong Kong

香港男同性戀者間的無症狀沙眼衣原體和淋病雙球菌感染篩查

CT Chau 鄒傳德, KM Ho 何景文, CK Ho 何正綱

Abstract

Objective: This study investigated the prevalence of asymptomatic Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infections in various anatomical sites among men who have sex with men (MSM) in Hong Kong. Methods: MSM attending the Social Hygiene Clinics with no symptoms of CT or NG infections were recruited. Swabs were collected from the urethra, rectum and pharynx to screen for CT and NG infections. Results: 158 MSM with a median age of 27 years were enrolled. The prevalence of asymptomatic CT or NG infections from any site was 19.6%. Rectal screening alone detected around three quarters of total infections. Conclusions: A substantial number of asymptomatic CT or NG infections were detectable by routine screening among MSM in Hong Kong. Extra-genital screening especially from the rectum is therefore important.

目的:本研究調查香港男同性戀者間多個身體部位的無症狀沙眼衣原體和淋病雙球菌感染的流行情況。方法:在社會衛生科內,招募沒有沙眼衣原體或淋病雙球菌感染病徵的男同性戀就診者。收集其尿道、直腸和咽喉的拭子樣本,篩查有否沙眼衣原體和淋病雙球菌感染。結果:共招募了158名年齡中位數為27歲的男同性戀者。合計所有部位的無症狀沙眼衣原體或淋球菌感染的患病率為19.6%。直腸單一部位篩查出的感染已差不多佔總感染的四分三之多。結論:在香港男同性戀者間的常規篩查檢測當中,可發現比重不少的無症狀沙眼衣原體或淋病雙球菌感染。生殖器以外的篩查尤其是直腸,實為重要。

Keywords: Chlamydia, gonorrhoea, men who have sex with men, screening

關鍵詞: 衣原體、淋病、男同性戀者、篩查