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Figure 2 | Veterinary Research

Figure 2

From: Biofilm formation in Streptococcus suis: in vitro impact of serovars and assessment of coinfections with other porcine respiratory disease complex bacterial pathogens

Figure 2

Impact of virulence factor (VF) genes on biofilm formation in Streptococcus suis isolates recovered from Spanish swine farms. A) Boxplots illustrating the quantitative biofilm formation of S. suis, comparing the presence or absence of VF genes. The difference in absorbance (OD595) from that of the negative control (DC) was quantified. Each S. suis isolate is represented by a dot with horizontal jitter for visibility. The horizontal box lines represent the first quartile, the median, and the third quartile. Whiskers extend to 1.5 times the interquartile range. Differences between groups were evaluated using the Wilcoxon rank-sum test. B) Principal component analysis (PCA) of the five evaluated VF genes, showing grouping on the basis of biofilm formation degree.

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