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I have the box and 3 months worth of Sentinel left from the years supply I bought last time-it does say on the box that it's suppose to remove and control adult roundworms. I give him his heartworm meds regilously on the 1st of the month every single month, and have been doing so since he was about 10 weeks old.
Use of Sentinel Animals Policy: The use of sentinel animals provides an effective means of monitoring populations of experimental animals for infectious disease pathogens. Sentinel animals are housed in the same room with experimental animals and are exposed to the same environmental factors. After a period of exposure to the experimental animals, a sentinel animal is sent to a diagnostic laboratory to be examined for infectious agents. This method of surveillance and diagnosis avoids researchers having to give up experimental animals.