Abstract
A specific and rapid enzyme-linked immunosorbent assay (ELISA) has been applied for the detection of immunoglobulins to Staphylococcus epidermidis cell surface polysaccharides in human serum. Positive IgG, IgM and IgA titres of more than 1: 6400, 1: 1600 and 1: 400 were observed with this assay against passive protective human serum. However, IgG, IgM and IgA titres of less than 1: 400, 1: 100 and 1: 50 were shown in non-protective serum. When the cross-reactivity of passive protective human serum to homologous and heterologous cell surface polysaccharides was examined by inhibition test with ELISA, remarkable inhibition was shown with homologous cell surface polysaccharide, whereas no inhibition was observed with heterologous substances. According to these results, the quantitation of human serum antibody by the ELISA method against Staph. epidermidis cell surface polysaccharide was found to be significant for the demonstration of passive protective activities against Staph. epidermidis.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
