Cardiff based biotechnology company ImmunoServ have devised kits for T cell testing that can indicate how protected people are from infectious diseases, such as COVID-19 and influenza.
Mae'r cwmni biotechnoleg o Gaerdydd, ImmunoServ, wedi dyfeisio citiau profi celloedd T sy'n gallu dangos lefel amddiffyniad pobl rhag clefydau heintus, fel COVID-19 a'r ffliw.