We describe monoclonal antibodies that can be used to identify antigenic differences between PCV2 strains.
Based on this identification the strains can be assigned to clusters with varying virulence.
The technology can thus be used for diagnosis and for selection of strains that should be included in a vaccine to obtain a broad protection against PCV2.
The monoclonal antibodies are described by Lefebvre et al. in Journal of General Virology 2008, 89, 177-187.
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