Sasaki Asami, Suzuki Hiroshi, Sakai Takatugu, Sato Maki, Shobugawa Yugo, Saito Reiko
Department of Public Health, Niigata University Graduate School of Medical and Dental Sciences, 1-757, Asahimachi-Dori, Niigata City, Niigata 951-8510, Japan.
J Infect. 2007 Aug;55(2):179-83. doi: 10.1016/j.jinf.2007.04.004. Epub 2007 Jun 8.
Due to high vaccine coverage in Niigata, we had no outbreaks of measles from 1997 to 2003 but an opportunity to study the role of sporting events in the propagation of an epidemic was experienced in the spring of the latter year.
Mandatory measles case reports were requested from all high schools in Niigata, which covered a school year, date of onset, club activity, vaccination status, and hospitalization.
With national marathon and kendo (Japanese fencing) meetings for high school students, measles outbreaks occurred at 27 high schools with 192 patients (186 students and 6 teachers) in Niigata. Of 64 unvaccinated patients, 14 (21.9%) were hospitalized and 6 (6.2%) of 97 vaccinated patients. Mostly single cases were encountered at high schools in which index cases had a vaccination history, whereas at a high school in which index cases had no vaccination history, the total number of cases per school increased, mostly within more than 3 cases (p<0.05).
We conclude that sporting events, even if outdoors, might be a risk factor for measles infections. Appropriate actions to control outbreaks should be performed promptly in collaboration with related personnel and institutions.
由于新泻市的疫苗接种率很高，1997年至2003年期间我们没有麻疹疫情，但在2003年春季经历了一次研究体育赛事在疫情传播中作用的机会。
要求新泻市所有高中提供强制性麻疹病例报告，内容包括学年、发病日期、社团活动、疫苗接种状况和住院情况。
随着全国高中生马拉松和剑道（日本剑术）比赛的举行，新泻市27所高中发生了麻疹疫情，有192名患者（186名学生和6名教师）。在64名未接种疫苗的患者中，14名（21.9%）住院，在97名接种疫苗的患者中，6名（6.2%）住院。在索引病例有疫苗接种史的高中，大多遇到的是单个病例，而在索引病例无疫苗接种史的高中，每所学校的病例总数增加，大多超过3例（p<0.05）。
我们得出结论，体育赛事即使在户外举行，也可能是麻疹感染的一个危险因素。应与相关人员和机构合作，迅速采取控制疫情的适当行动。
