Antiserum reagent OMNI

antibodypolyclonal antibodyfor research

Pneumococci are enclosed within a capsule consisting of repeated units of polysaccharides. The composition of the polysaccharides defines the serotype. 91 pneumococcal serotypes have been described to date, with more on the way. When omni antiserum is used as the method for identifying pneumococci, it should be noted that alpha-haemolytic streptococci can cross-react. Product description Omni antiserum is produced by mixing and washing polyclonal antibodies against the 91 serotypes. The product is supplied in a vial with 1 mL ready-to-use antiserum, sufficient for approx. 300 tests. Many years of experience producing Pneumococcus antisera High quality All absorbed free of cross-reactions We offer experienced technical support How to use Omni antiserum is used in the capsular reaction, also called the Neufeld test. Equal quantities of antiserum and bacterial culture are mixed on a slide. Under a phase control microscope, a positive reaction is indicated when the capsule enclosing the pneumococcus swells and becomes visible. The bacteria will frequently also agglutinate.