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abstractpubmed· Abstract 2017· item PMID:28930025
Unrecognized Subclinical Infection with Tickborne Encephalitis Virus, Japan. During early 2017, we conducted a seroepidemiologic investigation for tickborne encephalitis virus among 291 Japan Self-Defense Forces members in Hokkaido. Two (0.7%) tested positive. Neither had clinically apparent symptoms after removing ticks.