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.
Note: Antigens are on both your own organs and foreign invaders. Your own antigens are âgood,â your body recognizes them as âthe selfâ and does not attack or mark them. But foreign antigens on pathogens stimulate an immune response and antibody production.Here is the analogy I came up with.ote: Antigens are on both your own organs and foreign invaders. Your own antigens are âgood,â your body recognizes them as âthe selfâ and does not attack or mark them. But foreign antigens on pathogens stimulate an immune response and antibody production. Here is the analogy I came up with.