For the study, the researchers created a line of zebrafish with defective immune systems by inserting a mutation into a gene required for development of an important component of the immune system. (sciencedaily.com)
Autoimmune diseases are those in which your dog's defective immune system attacks and damages parts of its own body. (yourpurebredpuppy.com)
In a special experiment, zebrafish with defective immune systems swam and dined with counterparts with normal immune systems. (sciencedaily.com)