Figure 1From: Induction of mycoplasmal pneumonia in experimentally infected pigs by means of different inoculation routes Sera percentage of inhibition (mean ± SD) from Control, ET, IN and AE groups 1 day before challenge (−1 dpi) and at necropsy (28 dpi). Different superscripts indicate significant differences among groups (p < 0.05). Discontinuous line represents the seropositivity threshold.Back to article page