When a Vaccine is administered into the boy of a human being it activates two important types of white blood cell. First up are the plasma B cells, which primarily focus on making antibodies. Unfortunately, this cell type is short-lived, so although your body might be swimming in antibodies within just a few weeks, without the second shot this is often followed by a rapid decline and most vaccines require booster doses to work as they help fine tune immune response. For those who have taken the Covid-19 vaccine what was your body response ?