Al Balushi Lamya, Al Kalbani Maryam, Al Manji Asim, Amin Mohammed, Al Balushi Zainab, Al Barwani Nada, Al Wahaibi Adil, Al Manji Abdullah, Al Kindi Hanan, Petersen Eskild, Al Ghafri Thamra, Al-Abri Seif
Disease Surveillance and Control Department, Muscat, Oman.
Directorate General of Disease Surveillance and Control, Muscat, Oman.
IJID Reg. 2023 Apr 1;7:237-241. doi: 10.1016/j.ijregi.2023.03.015. eCollection 2023 Jun.
Dengue fever is an infectious disease of global health concern. This study aimed to describe the epidemiology and field experience of a locally transmitted outbreak of dengue fever in Muscat Governorate, Oman from mid-March to mid-April 2022, and the multi-sectoral approach to control the outbreak.
Data were collected from an electronic e-notification system, active surveillance and contact investigations.
Of 250 suspected and probable cases, 169 were confirmed as dengue fever with DENV-2 serotype. Of these, 108 (63.9%) were male and 94 (55.6%) were Omani. The mean age was 39 years (standard deviation 13 years). Fever was the most common symptom and occurred in 100% of cases. Haemorrhagic manifestations occurred in 10% (=17) of cases. Hospitalization was required for 93 cases (55.1%). The field investigation included 3444 houses and other suspected sites. Breeding sites for were identified in 565 (18.5%) sites visited. Interventions to control the outbreak included environmental and entomological assessment of the affected houses and surrounding areas (400 m radius of each house).
Outbreaks are expected to continue, with the possibility of severe cases due to antibody-dependent enhancement. More data are required to understand the genetics, geographical spread and behaviour of in Oman.
登革热是一种全球关注的传染病。本研究旨在描述2022年3月中旬至4月中旬阿曼马斯喀特省本地传播的登革热疫情的流行病学情况和现场经验，以及控制疫情的多部门方法。
数据收集自电子电子通知系统、主动监测和接触调查。
在250例疑似和可能病例中，169例确诊为登革热，血清型为DENV-2。其中，108例（63.9%）为男性，94例（55.6%）为阿曼人。平均年龄为39岁（标准差13岁）。发热是最常见的症状，100%的病例出现发热。10%（=17例）的病例出现出血表现。93例（55.1%）需要住院治疗。现场调查包括3444所房屋和其他疑似地点。在所访问的565个（18.5%）地点发现了登革热的滋生地。控制疫情的干预措施包括对受影响房屋及其周边地区（每所房屋半径400米）进行环境和昆虫学评估。
预计疫情将持续，由于抗体依赖性增强，可能会出现重症病例。需要更多数据来了解阿曼登革热的遗传学、地理传播和行为。
