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Chapter 12b: TBE in Japan

Table 1: Virus, vector, transmission of TBE in Japan

Viral subtypes, distribution Far-Eastern subtype

Reservoir animals Wild rodents 3,7,8
6
Infected tick species (%) I. ovatus (0.33%)
Dairy product transmission Not reported

Table 2: TBE reporting and vaccine prevention in Japan
Laboratory confirmed cases must be reported by physicians.

Case definition: Isolation of TBEV or detection of TBEV genomic ribonucleic
Mandatory TBE reporting acid by RT-PCR from blood or cerebrospinal fluid; Detection of IgM
antibodies against TBEV from blood or cerebrospinal fluid; detection of
significant increase in neutralizing antibodies against TBEV in paired serum.
Other TBE surveillance No
Special clinical features Encephalitis and meningitis with typical neurological symptoms.
Available vaccines No
Vaccination recommendations
No
and reimbursement
Vaccine uptake by age group/risk No
group/general population
Name, address/website of TBE
NRC No

Figure 1: TBEV-isolation and TBE cases in Japan 2-7
The region of viral isolation and cases are indicated by orange color and hatching

TBE in Japan, K. Yoshii

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