The phrase "minor reactions" refers to a relatively small or insignificant response, typically in relation to something that has happened. Full definition
You can also use some home treatments to help relieve some of the more common minor reactions to infant vaccination. (newbornbabyzone.com)
A few mothers notice minor reactions to other foods in their diet. (healthychildren.org)
However, if the puppy shows signs of distress or the seemingly minor reactions fail to cease after 24 hours, call your veterinarian. (dogcare.dailypuppy.com)