Munkhzul Battsendiin, Batdorj Batjargaliin, Baigalmaa Jantsansengeegiin
Mongolian Field Epidemiology Training Programme, Ulaanbaatar, Mongolia . ; National Center for Communicable Diseases, Ulaanbaatar, Mongolia .
Western Pac Surveill Response J. 2012 Dec 20;3(4):48-52. doi: 10.5365/WPSAR.2012.3.4.003. Print 2012 Oct.
Fifty-eight syphilis cases were notified from Darkhan-Uul Province in the first three months of 2012, which is double that of the same period in 2011. The objective of this investigation was to confirm the existence of the outbreak, examine the risk factors of cases and develop recommendations to prevent further spread.
We conducted a descriptive study of cases notified to the national surveillance system diagnosed with syphilis between 1 January and 20 March 2012 in Darkhan-Uul Province. Additional data were collected from doctors' record books and outpatient cards. We compared outbreak cases to non-outbreak cases notified in Darkhan-Uul Province in 2011.
The total notification rate was 62.3 per 100 000. The notification rate was highest among 20-29 year olds, and 38 (65.5%) were females. More males than females were detected through contact tracing (45% compared with 10.5%). Only 10% of cases reported using condoms during their last sexual encounter, with 65.5% reporting having had casual sex or multiple sex partners. There were no homosexual cases. Compared to the non-outbreak cases, outbreak cases had a significantly higher proportion of detection through contact tracing (22.4% compared with 0.7%) but a lower proportion of detection through prevention (3.5% compared with 26.5%). There was also a higher proportion of primary syphilis in outbreak cases (62.1% compared with 41.7%).
The syphilis outbreak in Darkhan-Uul Province was confirmed. We recommended effective contact tracing followed by timely diagnosis and treatment. Health promotion activities targeted to high school, college and university students on syphilis infection and prevention as well as condom usage were recommended for future prevention.
2012年前三个月，达尔汗乌勒省报告了58例梅毒病例，是2011年同期的两倍。本次调查的目的是确认疫情的存在，检查病例的风险因素，并提出预防进一步传播的建议。
我们对2012年1月1日至3月20日期间向国家监测系统报告的达尔汗乌勒省梅毒确诊病例进行了描述性研究。从医生的记录簿和门诊病历卡中收集了额外的数据。我们将疫情病例与2011年达尔汗乌勒省报告的非疫情病例进行了比较。
总报告率为每10万人62.3例。报告率在20至29岁人群中最高，38例（65.5%）为女性。通过接触者追踪发现的男性多于女性（分别为45%和10.5%）。只有10%的病例报告在最近一次性接触中使用了避孕套，65.5%的病例报告有随意性行为或多个性伴侣。没有同性恋病例。与非疫情病例相比，疫情病例通过接触者追踪发现的比例显著更高（22.4%对0.7%），但通过预防发现的比例更低（3.5%对26.5%）。疫情病例中一期梅毒的比例也更高（62.1%对41.7%）。
达尔汗乌勒省的梅毒疫情得到确认。我们建议进行有效的接触者追踪，随后及时进行诊断和治疗。建议针对高中、大专和大学生开展关于梅毒感染与预防以及避孕套使用的健康促进活动，以预防未来的疫情。
