Dutch Princess Maxima talks to Raul Kohan (R), CEO of Global Animal Health of German pharmaceutical group Merck as she attends the opening ceremony of a specialized filling and freeze-drying unit for veterinary vaccines at its Biosciences Center Boxmeer, a lead site which produces vaccines and pharmaceutical products against bacterial, parasitological, and viral infections in cattle, sheep, swine, poultry, fish and companion animals in Boxmeer, on November 9, 2010.