Emerg Infect Dis. 2020 Feb;26(2):199-205. doi: 10.3201/eid2602.191218.
We conducted a recent investigation in Quebec, Canada, concerning Canadian deer hunters who went to the United States to hunt deer and returned with symptoms of fever, severe headache, myalgia, and articular pain of undetermined etiology. Further investigation identified that a group of 10 hunters from Quebec attended a hunting retreat in Illinois (USA) during November 22-December 4, 2018. Six of the 10 hunters had similar symptoms and illness onset dates. Serologic tests indicated a recent toxoplasmosis infection for all symptomatic hunters, and the risk factor identified was consumption of undercooked deer meat. Among asymptomatic hunters, 2 were already immune to toxoplasmosis, 1 was not immune, and the immune status of 1 remains unknown. Outbreaks of acute toxoplasmosis infection are rare in North America, but physicians should be aware that such outbreaks could become more common.
我们最近在加拿大魁北克进行了一项调查，调查对象是前往美国猎鹿并出现发热、剧烈头痛、肌痛和关节疼痛等症状的加拿大猎鹿人。进一步的调查确定，10 名来自魁北克的猎人于 2018 年 11 月 22 日至 12 月 4 日在伊利诺伊州（美国）参加了一次狩猎静修活动。10 名猎人中有 6 人出现了类似的症状和发病日期。血清学检测表明所有有症状的猎人近期都感染了弓形虫，确定的危险因素是食用未煮熟的鹿肉。在无症状的猎人中，2 人已经对弓形虫有免疫力，1 人没有免疫力，1 人的免疫状态尚不清楚。北美的急性弓形虫病感染爆发很少见，但医生应该意识到，这种爆发可能会变得更加常见。
