Christiaan Mulder is a Senior Epidemiologist at KNCV and holds a PhD in Epidemiology, which he obtained at the University of Amsterdam. His PhD included studies to strengthen TB contact investigation and latent tuberculosis infection (LTBI) control practices.

Prior to joining KNCV, he lived and worked in rural Tanzania to do research on innovative TB diagnostics. At KNCV, he conducts epidemiological, cost-effectiveness and qualitative research, and TB epidemiological assessments in high TB-burden countries. He provides technical assistance for the design and implementation of drug resistance surveys, optimal screening and diagnostic algorithms (including Xpert MTB/RIF and CAD4TB). Christiaan is a co-investigator for TB preventive treatment demonstration projects and trials, including qualitative research components, and on introducing new drug regimens for drug-resistant TB. He facilitates workshops to determine the TB burden and gaps in treatment coverage at subnational level. In additions he has published a number of peer-reviewed articles on the outcomes and practices of TB contact investigations.