Sentinel mouse program
The RIKEN BRC has adopted the sentinel mouse program, a specialized approach with the microisolator cage system. A sentinel mouse cage containing four mice is laid on a microisolator cage rack and small pieces of bedding material from all cages of the rack are collected and placed in the sentinel mouse cage. One mouse from a sentinel cage are subjected to in-house examination at regular intervals.
We classify the microorganisms into four classes according to the risk presented to the mouse in Japan. All sentinel mice are tested for class A and B. Sentinel mice kept in the room for immuno-deficient mice are screened for class C as well. Class D contains certain pathogens believed not to exist in the Japanese mouse colony; therefore, mice are examined only at the request and expense of the recipient.
Announcement on monitoring of Hantaan virus and dermatophytes
Health Report 
(BRC facility Health Report in the last year and a half)
Health Reports in RIKEN BRC Cryorecovery Work
Sentinel Health Report
Date 2F 3F 4F
3-A to 3-D 3-1 to 3-8 4-A to 4-C
November, 2021 3-C,D : 
October, 2021 3-A,B :
September, 2021 4-A,B :
4-C :
August, 2021 3-C,D :
July, 2021 3-A,B :
June, 2021 4-A,B :
4-C :
May, 2021 3-C,D :
April, 2021 3-A,B :
March, 2021 4-A,B :
4-C :
February, 2021 3-A,B :
3-C,D :
January, 2021 4-C :
December, 2020 4-A,B :
November, 2020 3-A,B :
3-C,D :
October, 2020
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