Microbiology Which of the following statement is true ? A Paul Bunnell test is used to diagnose measles B Rose Waaler test is a complement fixation test C Indirect hemagglutination test is less sensitive than gel diffusion test D Antigen antibody reaction cannot occur in the absence of electrolytes 💡 Explanation Which of the following statement is true ? ✓ Correct Answer: D. Antigen antibody reaction cannot occur in the absence of electrolytes