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 five 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. Two mice from a sentinel cage are subjected to examination quarterly; one is for in-house examination and the other is sent to the ICLAS monitoring center of the Central Institute for Laboratory Animals, Kawasaki, Japan. The health report you receive is a copy of the then-most-recent Health Report guaranteed by a veterinarian at the ICLAS Monitoring Center.
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
Bimonthly Sentinel Health Report
Date 2F 3F 4F
3-A to 3-D 3-1 to 3-8 4-A to 4-C
November, 2019 
October, 2019
September, 2019
August, 2019
July, 2019
June, 2019
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April, 2019
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February, 2019
January, 2019
December, 2018
November, 2018
October, 2018
September, 2018
August, 2018
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January, 2018
December, 2017
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April, 2017
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January, 2017
December, 2016
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January, 2016
December, 2015
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December, 2014
November, 2014
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September, 2014
August, 2014
July, 2014
June, 2014
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February, 2014
January, 2014
December, 2013
November, 2013
October, 2013
September, 2013
August, 2013
July, 2013
June, 2013 
May, 2013
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March, 2013
February, 2013
January, 2013
December, 2012
November, 2012
October, 2012
September, 2012
August, 2012
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April, 2012
March, 2012
February, 2012
January, 2012
December, 2011
November, 2011
October, 2011