Abstract: lymphocytic choriomeningitis Virus (LCMV) is a significant zoonosis. Recently, human infected with lymphocytic chorimeningtis virus (LCMV) are diagnosed more efficient. LCMV infection rate of laboratory animals is regulated at the low level. In Chinese national standards, LCMV is a required test item for guinea pigs and hamsters, but for mice only test when it necessary. However, LCMV is a routine test item for rats in some other areas. To strengthen the awareness of LCMV test, we will introduce information about laboratory animals LCMV infection status in different countries and areas.