Within a public health context, periodic monitoring of the susceptibility status of fleas in plague risk areas would allow all regions to be prepared in the case of an outbreak. (sciencedaily.com)
The inspector can also point out maintenance needs and procedures, and explain how and when to check items that need periodic monitoring. (amerispec.com)
As for periodic monitoring to be sure no new stones are likely to form, several protocols have been advocated. (marvistavet.com)