Historical evidence indicates that the microorganisms handled at this level are unlikely to cause human disease or animal disease of veterinary兽医的 importance. Ideally, however, all laboratory workers should undergo a pre-employment health check at which their medical history is recorded. Prompt reporting of illnesses or la boratory accidents is desira ble and all staff members should be made aware of the importance of maintaining GMT.Historical evidence indicates that the microorganisms handled at this level are unlikely to cause human disease or animal disease of veterinary兽医的importance. Ideally, however, all laboratory workers should undergo a pre-employment health check at which their medical history is recorded. Prompt reporting of illnesses or laboratory accidents is desirable and all staff members should be made aware of the importance of maintaining GMT