Why is anti sera B yellow in color?

Anti-sera B is yellow in color due to the presence of a specific dye or indicator that is added to the solution during the manufacturing process. The dye is chosen to visually differentiate between different types of anti-sera, making it easier for laboratory technicians to identify and work with the correct reagent. The yellow color does not affect the functionality of the anti-sera but serves as a visual marker for quality control and proper usage.