As with the series' parent show Wallace and Gromit, there are many allusions to other aspects of popular culture and movies such as Star Wars, The Lion King, E.T.: The Extra-Terrestrial, The Matrix, and Pulp Fiction. 1  These include: 2  Shirley's training in the episode Shape Up with Shaun is based on the film Rocky.
Many pathogenic bacteria exist in nature as multiple antigenic types or serotypes, meaning that they are variant strains of the same pathogenic species. For example, there are multiple serotypes of Salmonella typhimurium based on differences in cell wall (O) antigens or flagellar (H) antigens.any pathogenic bacteria exist in nature as multiple antigenic types or serotypes, meaning that they are variant strains of the same pathogenic species. For example, there are multiple serotypes of Salmonella typhimurium based on differences in cell wall (O) antigens or flagellar (H) antigens.
Microbial cell walls, which contain glycolipids and phospholipids, are rich in antigens. Such antigens are located on the surface of the microbial cell membranes and are therefore important in the host recognition of microbial infections and subsequent immune responses in higher organisms.bstract. Molecular mechanisms of lipidâantigen recognition are important in the frontier of immunology. Possible pathogeneses of autoimmune diseases and tumours now include infections with microorganisms.