Retrospective evaluation of hematological ratios in canine parvovirosis: 401 cases.

Background: The utility of neutrophil-to-lymphocyte ratio (NLR), platelet to-lymphocyte ratio (PLR) and monocyte-to-lymphocyte ratio (MLR) as prognostic indicators has not been investigated in canine parvovirosis (CPV).

Hypothesis: To evaluate whether these hematological ratios obtained at hospital admission in CPV are associated with outcome or duration of hospitalization.

Animals: Four hundred one client-owned dogs presented with CPV.