Tham khảo tài liệu 'risk management in environment production and economy part 6', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Food Safety Risk Management 89 illnesses would be reduced from 130 000 to 41 000 cases. Also if all liquid egg products produced in the US were pasteurized for 6 log10 units reduction of Salmonella the annual number of illnesses would be reduced from 5 500 to 3 200 cases. Finally storage time temperature initial levels of Salmonella in unpasteurized egg products and the way in which products are prepared for consumption had the greatest impact on human health in the risk assessment of Salmonella spp. in egg products. As explained above the more complex the MRA is the less understandable for risk managers probably leading to misinterpretation and wrong decision-making. Nevertheless MRA was mainly addressed to include a more extensive analysis of risk factors and to assess the effectiveness of potential management strategies to reduce microbial risks. One of the most representative examples is the MRA developed by Ross et al. 2009 for L. monocytogenes in RTE meats. The predictions obtained were based on data describing initial contamination levels of both lactic acid bacteria and L. monocytogenes product formulation times and temperatures of distribution and storage prior to consumption and consumption patterns. The risk output indicated that processed meats could be responsible for up to 40 of cases of listeriosis in Australia a level that could be in line with the available epidemiological data. Application of risk management measures for L. monocytogenes in ready-to-eat lettuce salads was made by Carrasco et al. 2010 . They showed that the most effective measures to reduce the risk of listeriosis were the use of specific mixture of gases in packages the reduction of shelf-life to four days and the prevention of high-risk population from consuming ready-to-eat lettuce salads. Other methodologies are based on the implementation of advanced sensitivity techniques in MR A Pérez-Rodríguez et al. 2007 . This latter study revealed that the extremes at the right side of .