(12)Based on the current scientific evidence, the use of live or inactivated vaccines against Salmonella enteritidis should be mandatory in Member States with a high prevalence in order to improve public health protection. The prevalence of Salmonella enteritidis demonstrated during a baseline study in accordance with Commission Decision 2004/665/ECnote and in the frame of the testing schemes in accordance with Article 4(2)(d) of Regulation (EC) No 2160/2003, should be used as a threshold for mandatory vaccination.