Type your title here and use the style template A. Presenting Author11, B. Author22, C. Author33, D. Author44 1 Affiliation Author1; Author4 2 Affiliation Author2; 3 Affiliation Author3; 4 Affiliation Keywords: keyword1, keyword2, keyword3 (max. 3) Please type your abstract here (max. 1500 characters including spaces) and do not change the formatting in any way. Please use the following structure: Background and objectives: Please describe the scientific reason(s), the objective and, if applicable, the relevance for Public Health of your presented study. Materials and methods: Please describe the materials and methods used to achieve your results. Results: Please summarize the concrete results of your study. (“Results will be presented” will not suffice to be selected as poster or talk.) Conclusion: Please state your argumentation based on your results.