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Volume 23, Number 10—October 2017

Research Letter

Unrecognized Subclinical Infection with Tickborne Encephalitis Virus, Japan

Kentaro Yoshii, Reiji Kojima, and Hiroshi NishiuraComments to Author 
Author affiliations: Hokkaido University, Sapporo, Japan (K. Yoshii); Japan Self-Defense Forces Sapporo Hospital, Sapporo (R. Kojima); University of Yamanashi, Yamanashi, Japan (R. Kojima); Hokkaido University, Sapporo (H. Nishiura)

Main Article


Neutralizing antibody titers against TBEV and JEV among members of the Japan Self-Defense Forces screened in early 2017*

Patient age, y Received tick bite in previous 10 y Antibody titer†
42 3 times 80 <20
48 1 time 40 <20

*JEV, Japanese encephalitis virus; TBEV, tickborne encephalitis virus.
†Neutralizing titer was defined as the reciprocal of the highest dilution of serum.

Main Article