The human immune system is a complex defense mechanism that aims to keep us healthy and safe from viruses, bacteria and all other types of pathogens we might come into contact with. But not all ...

LITTLE ROCK (KATV) — With a coronavirus vaccine now being administered in Arkansas, health officials say it’s starting to stimulate immunity against the disease. The first round of Moderna and Pfizer ...

The popular conception of a “vaccine” is that it is an inoculation that makes you immune to a pathogen — if not for life, at least for a very long time. On that principal, much of the world’s hope for ...