Microbiology Neil Mooser reaction or Tunica reaction is useful to differentiate between? A R. prowazekii & R. typhi B R. typhi & R. rickettsii C R. prowazekii & R. rickettsii D R. rickettsii & C. burnetti 💡 Explanation Neil Mooser reaction or Tunica reaction is useful to differentiate between? ✓ Correct Answer: A. R. prowazekii & R. typhi