Epidemiology of herpes zoster in the State of Qatar, 2012-2017.

This study aimed to determine the epidemiological features of herpes zoster (HZ) in Qatar. This study was a retrospective review of all reported HZ cases received by the surveillance unit at the Ministry of Public Health, between January 2012 and December 2017. A total of 2815 cases were reported during the study period. The mean incidence of HZ was estimated to be 19/100,000 population, which increased from 9.8/100,000 in 2012 to 36.2/100,000 in 2017. The ratio of male/female was about 4:1. HZ incidence overall was found to be highest in those aged ≥ 50 years. According to nationality, the mean incidence of HZ was estimated to be 79/100,000 among Qataris and 101/100,000 among expatriates. Additionally, more HZ cases were notified during the hot months. Such epidemiological data will contribute to the baseline information, which is necessary for effective preventive and control measures to be implemented in the country.