<P> Lewis antibodies are naturally occurring antibodies, almost always IgM type, found almost exclusively in Le (a-b -) individuals . Lewis antibodies may include a mixture of anti-Le (a), anti-Le (b) and anti-Le (a+). </P> <P> Lewis antibodies are almost always clinically insignificant because: </P> <Ul> <Li> transfused red cells shed their Lewis antigens and acquire the Lewis phenotype of the recipient </Li> <Li> Lewis antibodies are quickly adsorbed by free serum Lewis antigens, </Li> </Ul> <Li> transfused red cells shed their Lewis antigens and acquire the Lewis phenotype of the recipient </Li>

Which lewis antigen(s) will be exhibited on the red cells of adults who have the le se and h genes