This study involved four major activities in estimating the current size of the hepatitis testing market. Exhaustive secondary research was carried out to collect information on the market, its peer markets, and its parent market. The next step was to validate these findings, assumptions, and sizing with industry experts across the value chain through primary research. Both top-down and bottom-up approaches were employed to estimate the complete market size. After that, market breakdown and data triangulation procedures were used to estimate the market size of segments and subsegments.