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Figure 3 | Veterinary Research

Figure 3

From: Comparative analysis of the interactions of different Streptococcus suis strains with monocytes, granulocytes and the complement system in porcine blood

Figure 3

C3 deposition on the surface of S. suis strains in serum containing no specific antibodies. The indicated S. suis strains of serotypes 2, 14, 9, and 7 were incubated in serum of colostrum-deprived piglets (CDS) for 30 min, followed by staining of C3 with a cross-reactive FITCs conjugated anti-human C3c antibody and measurement of C3 antigen bound to the bacterial surface by flow cytometry. The results were expressed as the fluorescence index (FI) of bacteria with C3 bound to their surface. HICDS (heat-inactivated CDS) was used as a negative control. Flow cytometry data were analyzed using Dunn’s multiple comparisons test and presented as the mean values with SDs. The experiment was repeated 5 times. Differences that are not indicated are not significant. Significant differences are indicated (*p < 0.05, and **p < 0.01).

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Veterinary Research

ISSN: 1297-9716