Table 3 Comparison of macroscopic lung lesions in groups challenged with Hillcrest and Beaufort strains quantified by Goodwin lung score (GLS) and mean percentage of lung with mycoplasmal-type consolidated lesions (by weight), at 21 and 28 days post-inoculation (mean S.E.M.). Overall results for all pigs
are also given, and different superscripts indicate a significant difference between groups (P < 0.05).