Wahlberg P
Department of Medicine, Aland Central Hospital, Mariehamn, Finland.
Scand J Infect Dis. 1990;22(1):59-62. doi: 10.3109/00365549009023120.
The common tick Ixodes ricinus is a vector both for the virus of tick-borne viral encephalitis (Kumlinge disease, KD) and of Borrelia burgdorferi (Lyme borreliosis, LB). Bites of the tick are believed to be common in Aland, an island province of Finland in the Baltic Sea. KD has been seen there for many years, and cases of LB have been diagnosed lately. The purpose of this study was to find the incidence of tick-bite among the population with possible implications for the spread of LB. A questionnaire was sent to 561 persons greater than 8 years of age out of a total of 21,281 in order to record tick-bites and erythema chronicum migrans (ECM). The number of answers was 519 (92.5%). 441 persons (85%) had been bitten by ticks, 146 greater than 10 times. 14 probands had had ECM, 73 other rashes around the tick-bite. It is concluded that tick-bites are very common among the population, and thus conditions are favourable for the spread of any tick-borne infection such as LB. The number of patients with secondary or tertiary LB diagnosed in the area is presently 17. It is likely that there are many undetected cases in the area.
常见的蓖麻硬蜱是蜱传病毒性脑炎病毒（库姆林格病，KD）和伯氏疏螺旋体（莱姆病，LB）的传播媒介。蜱叮咬在奥兰群岛（波罗的海芬兰的一个岛屿省份）被认为很常见。KD在那里已被发现多年，近期也诊断出了LB病例。本研究的目的是找出蜱叮咬在人群中的发生率以及对LB传播的潜在影响。从总共21281人中向561名8岁以上的人发送了一份问卷，以记录蜱叮咬和慢性游走性红斑（ECM）。回复数量为519份（92.5%）。441人（85%）曾被蜱叮咬，其中146人被叮咬超过10次。14名先证者患有ECM，73人在蜱叮咬周围出现其他皮疹。结论是蜱叮咬在人群中非常常见，因此有利于诸如LB等任何蜱传感染的传播。该地区目前诊断出的继发性或三期LB患者有17例。该地区很可能存在许多未被发现的病例。
