Page 157 - MNU microbiology theoritical 2025

General Microbiology & Immunology (PM 401) Second level Semester 4 2024/2025

• With time at the interface where the two layers meet, antigen-antibody

complexes form a visible precipitate.

• Ascoli’s thermoprecipitin test, which is used in the diagnosis of anthrax

2- Tube test

• Antigen-antibody complexes, when formed at a high rate, will precipitate out

of a solution resulting in a turbid or cloudy appearance

3- Immunodiffusion

I. Radial Immunodiffusion (Mancini)

General Microbiology & Immunology (PM 401) theoretical handbook Page 146