Definition of «unaffected dogs»

The phrase "unaffected dogs" refers to dogs that are not influenced or impacted by something.

Blood samples from unaffected dogs, over the age of 8, would also be helpful for use as controls. (ttca-online.org)
Unfortunately, this technique will only differentiate between a «normal», i.e. unaffected dog, and one that is «affected». (thebedlingtonterrierhealthgroup.webplus.net)
For a given condition with sex class i (where i = F, NF, M, NM) and breed group j (j = 1,2,3,..., 157) we assume that ncases ij ~ Binomial (ncases ij + ncontrols ij, pij) where ncases ij was the number of observed cases in sex group i and breed group j and ncontrols ij was the number of unaffected dogs in sex group i and breed group j and where pij was the probability of disease in sex and breed group ij. (cgejournal.biomedcentral.com)
(see all sentences)