GoKawiilGut infections in mice train immune memory cells that settle in brain's protective lining
A mouse study led by Cambridge researcher Menna Clatworthy found that immune cells activated during intestinal infections, such as those caused by Citrobacter rodentium bacteria and the parasitic worm Schistosoma mansoni, travel to the meninges surrounding the brain. There, the cells take up long-term residence and mount a faster, stronger response when the same infection recurs more than a month later, indicating they retain a memory of the original illness.