2000  
  Institut für Virologie, Marburg  
  Differentiation and activation of eosinophils  
 
  2003  
  Annual meeting of the Human Frontier Science consortium, Genf  
  Immunological aspects of glycolipids in apicomplexan parasites  
     
  2004
  René Rachou Research Centre, FIOCRUZ, Belo Horizonte (Brazilien)  
  Roles of GPIs of T. gondii. Induction of TNF-α production in macrophages  
     
  Fachbereich Medizin, Georg-August Universität, Göttingen  
  Role of Toll-like receptors in TNF-α production induced by Toxoplasma gondii glycosylphosphatidylinositols  
     
  Pasteur Institut, Lille (Frankreich)  
  Role of glycosylphosphatidylinositols of Toxoplasma gondii in the innate immune response  
     
  2005  
  Institut für Parasitologie und tropische Pathologie, Strasbourg (Frankreich)  
  Roles of glycosylphosphatidylinositols of Toxoplasma gondii. Induction of TNF-α production in macrophages  
     
  2006  
  Einheit von strukturelle und funktionnelle Glycobiologie (UGSF), Lille (Frankreich)  
  Biological effects of glycosylphosphatidylinositols of Toxoplasma gondii  
     
  2007  
  Fachbereich Medezin, Lille (Frankreich)  
  Glycosylphosphatidylinositols and fatty acids of Toxoplasma gondii : modulation of the host immune response  
     
  2008  
  16th Japanese-German Cooperative Symposium on Protozoan Diseases, Göttingen  
  Activation of the host immune system by the glycosylphosphatidylinositols of Toxoplasma gondii  
     
  Pasteur Institut, Paris  
  Glycolipids of P. falciparum: modulation of the inflammatory response by glycosylphosphatidylinositols and fatty acids  
     
  2010  
  Tage des föderatives Forschungsinstituts IFR136, Tours (Frankreich)  
  Glycosylphosphatidylinositols and fatty acids of Toxoplasma gondii : modulation of the host immune response  
     
  2011  
  Fachbereich Medezin, Joseph Fourier Universität, Grenoble (Frankreich)  
  Toxoplasma gondii : Macrophage activation by glycosylphosphatidylinositols  
     
  2013  
  Krankheitserreger und Biotechnologien für Gesundheit Forschungszentrum (CPBS), Montpellier (Frankreich)  
  Glycosylphosphatidylinositols of Trypanosoma cruzi : a comparative study  
     
  2014  
  Institut für Virologie, Marburg  
  Design, synthesis, and evaluation of new inhibitors of Apicomplexa  
     
  Club Toxo, Tours  
  Conception, synthèse et évaluation de nouveaux inhibiteurs de CDPK1 à visée anti-apicomplexe