Lukas is an epidemiologist and international health expert. His research focus is infectious disease epidemiology and molecular epidemiology of emerging pathogens threatening public health, such as nosocomial infections and more recently TB and HIV, at the interface between clinical and molecular data. As the head of the TB research group, he has been leading multiregional projects on TB and HIV within IeDEA, and molecular epidemiological studies on TB/HIV in Switzerland and sub-Saharan Africa. He has a longstanding track record working with large HIV collaborations (IeDEA, Swiss HIV Cohort Study, Collaboration of Observational HIV Epidemiological Research in Europe). During the last two years, Lukas has gained extensive field experience in low-income settings as scientific project leader and TB team leader stationed at the Ifakara Health Institute.