Abstract Background The first hours after antigen stimulation. interactions occur influencing the outcome of the immunological reaction. Immunoglobulins originate in blood and/or are locally synthesized. The transfer of Ig isotypes (Igs) in the udder has been studied previously but without the possibility to distinguish between the endothelium and the epithelium. https://chefesquipmenters.shop/product-category/reamers/