DANIELA BECKMANN / SCIENCE PHOTO LIBRARY DANIELA BECKMANN / SCIENCE PHOTO LIBRARY
Streptococcal grouping test. The test method consists of a streptococcal-specific antigen detection by an antibody-antigen reaction. Streptococcal antigens, carried in the streptococcal cell wall, will agglutinate to the corresponding antibody-coated latex particles forming dark blue clumps.
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