Volume 23, Number 1—January 2017
Travel-Related Tick-Borne Encephalitis, Israel, 2006–2014
|Variable||Case-patient 1||Case-patient 2||Case-patient 3||Case-patient 4|
|Probable area of exposure||Salzburgland||Baden-Wurttemberg||Northwest of Stockholm||Southwestern Siberia|
|Month of travel||2014 Jun||2012 Sep||2011 May–Aug||2010 Aug|
|Duration of travel, d||3||14||107||17|
|Duration of probable exposure to tick habitat||1 h||4 d||Undetermined||17|
|Recorded tick bite
|Neurologic manifestations during acute phase||Diplopia → stupor, aphasia, quadriparesis||Dysphagia, dysgeusia, bilateral facial nerve paralysis||Meningismus, mild confusion, dysarthria → Lt facial nerve. paralysis||Acute confusion, stupor|
|Neurologic outcome at 6 mo
||Complete motor recovery, difficulty in complex tasks, depression.
|TBE serology results†|
|First serum sample||IgM positive, IgG positive||IgM positive, IgG negative||IgM positive, IgG positive||IgM positive, IgG positive|
|Convalescent-phase serum sample||IgM positive, IgG 10-fold increase||IgM positive, IgG seroconversion||IgM positive‡, IgG positive‡||ND|
*ND, not done; TBE, tickborne encephalitis.
†West Nile virus was ruled out serologically in all cases.
‡Direct comparison between serum samples was not possible because initial sample was taken abroad.
1These authors contributed equally to this article.