The Copperbelt University 1 article published in JoVE Immunology and Infection Concurrent Quantification of Cellular and Extracellular Components of Biofilms Sharukh S. Khajotia1, Kristin H. Smart1, Mpala Pilula1,3, David M. Thompson2 1Department of Dental Materials, College of Dentistry, University of Oklahoma Health Sciences Center, 2Department of Biostatistics and Epidemiology, College of Public Health, University of Oklahoma Health Sciences Center, 3Department of Biological Sciences, School of Mathematics and Natural Sciences, The Copperbelt University A protocol for the concurrent quantification and comparison of three cellular and extracellular components within biofilms is presented. The methodology involves the use of confocal laser scanning microscopy, biofilm structural analysis and visualization software, and statistical analysis software.