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Figure 2 | BMC Veterinary Research

Figure 2

From: A survey of visitors on Swedish livestock farms with reference to the spread of animal diseases

Figure 2

Number of visitors by season, category of species and type of visitors. Results from a study dealing with frequency of indirect farm-to-farm contacts (Swedish livestock farms, 2006–2007). The graph shows the mean number of visitors per day, by category of species and season. The dark grey bars refer to professional visitors, light grey bars refer to non-professional visitors and the black lines show the 95% confidence interval.

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