What is Herd Immunity

In public health, herd immunity (also known as population immunity) is point at which population becomes protected from an infectious disease. This happens when enough people have developed a defense—either…

What is Cell Mediated Immunity

Our bodies use antibodies to check fluids between cells, some pathogens are clever enough to hide inside  cells themselves. This is where Cell-Mediated Immunity (CMI) steps in. Unlike humoral immunity…