為答謝參與，只完成問卷的參加者將會獲得港幣二十元現金券；而完成問卷且提供血液樣本的參加者將會獲贈港幣一百元現金券補償交通費用。

研究目的

本研究項目旨在分析本港男男性接觸者社群現時的猴痘暴露程度及將來的傳播風險。

Aim

The aim of the study is to assess the current level of exposure to mpox and the future transmission risk among men who have sex with men in Hong Kong.

研究設計

參加者將會填答一份網上問卷，內容包括個人背景資料、性行為及性病史、猴痘相關暴露史及疫苗接種情況，和風險評估。

完成問卷後，參加者可選擇到位於沙田威爾斯親王醫院的研究中心提供不多於六毫升血液樣本作猴痘血清學分析。

為答謝參與，只完成問卷的參加者將會獲得港幣二十元現金券；而完成問卷且提供血液樣本的參加者將會獲贈港幣一百元現金券補償交通費用。

這是一項不記名的研究，所收集資料將不會寄存於任何醫院或診所的醫療記錄內。研究結果只會以統計數據形式發表，個別人士資料不會公開。只有參與此項目研究的工作人員才可以閱覽相關記錄。研究資料會被保留不多於五年。剩餘的血液樣本（如果有的話）將用於鑑証測試結果和用在同一目標的進一步數據分析。靜脈穿刺或會造成痛楚、不適、流血、頭暈、瘀血或血腫。參與本項研究純實自願，且沒有可預見的心理，生理，社會，法律，或者經濟危險或得益。你可於任何時間要求退出研究。即使你不同意參與，或於其間要求退出，將不會影響你於轉介診所或醫院的診治程序。

由於本研究使用的測試方法只屬研究性質，測試結果將不會向參加者提供。

Study Design

Participants would be asked to complete a self-administered online questionnaire covering sociodemographics, sexual behaviour, sexually transmitted infection diagnosis, mpox exposure risk and vaccination history, and risk perceptions.

After completion of the questionnaire, participants would be invited to provide a blood sample of not more than 6mL for mpox serological testing at the Research Centre located in Prince of Wales Hospital, Shatin.

Participants completing the questionnaire only would receive a HKD20 cash voucher, whereas those providing blood samples in addition to the questionnaire would receive a HKD100 cash voucher for compensating the time and travel cost.

This is an anonymous study. Data collected would not be stored in clinical records in any hospitals or clinics. Study results will only be statistically presented without disclosure of personal level information. Results of the study would only be used for global analysis without referral to individual participant. An individual’s information would be treated in strictest confidence. All research data would only be accessible to researchers and their staff. Research data would be stored for no more than five years. Leftover blood samples, if available, would be used for validation of test results or further serological analyses in line with the objectives of the study. Performing venipuncture may result in discomfort, pain, bleeding, fainting, bruising, or hematoma at the site of puncture. Participation is entirely voluntary and will not subject the participants to any foreseeable psychological, physiological, social, legal or commercial risks or benefits. You can quit this study whenever you wish. In the event that you withdraw from the study, the questionnaire data would be destroyed, and that these would not be recorded or included in the subsequent analyses. Your access to clinical services would not be affected if you refuse to join the study, or request to withdraw after joining.

The serological results would not be conveyed to the participants as the test is for research use only.

參加資格

參加者須：

1. 年滿十八歲
2. 在過去六個月曾和男性發生性行為
3. 通常居住香港
4. 能閱讀中文或英文

Eligibility criteria

To join the study, you must:

1. be aged 18 years or above; and
2. have had sex with another man in the past 6 months; and
3. be normally living in Hong Kong; and
4. be able to read Chinese or English.