 The study examined the effects of PE and polyfluoroqually substances, PFAS, on the immune system. It found that these chemicals can cause immunosuppressive effects, such as decreased antibody production, as well as immuno-enhancing effects, such as increased calcium levels and changes in cell signalling pathways. Additionally, it explored how these chemicals can affect the development of the immune system during early life stages. This article was offered by Veronica Ehrlich, Wienek BIL, Rob Van De Briel and others.