Feline calicivirus
All enrolled cats completed the study. Post challenge, tympanic temperatures were normal (37.1–39.4 °C) in all treatment groups. Slight increases in tympanic temperature were observed in individuals in the non-vaccinated group post-challenge, between study days 43 and 47, but these still remained within the normal range.
Of the clinical data collected from day 41 onwards, non-vaccinated cats had the highest incidence of ulcers (nasal and/or oral), with 10 of 12 animals (83.3%) having ulcers compared to two of 12 (16.7%) animals in the concurrent administration group and three of 12 (25.0%) animals in the simultaneous administration group. Non-vaccinated cats also experienced a higher incidence (4 of 12 cats; 33%) of nasal discharge, while one animal in the concurrent administration group experienced slight nasal discharge. The median of the rank of clinical scores was the highest, at 30.5, in the non-vaccinated group (ranging between 12.5 and 36.0) and at 12.5 for both the concurrent and simultaneous administration groups (ranging between 2.5 and 27.0 and 28.0 respectively). There was a statistically significant difference (P < 0.0001) between non-vaccinated and concurrent administration groups for the analysis of ranks of clinical scores, as well as between non-vaccinated and simultaneous administration groups (P < 0.0001).
The geometric mean FCV antibody titres for animals in each treatment group at each time point are shown