#COVID19Vaccine #Moderna #Pfizer #COVID19 #Vaccine #coronavirus #mRNAVaccine TIME STAMPS: How the immune system works 0:30 General vaccine information 0:49 mRNA and COVID-19 1:24 COVID-19 vaccine 3:17 Whenever an invading bug (virus/bacteria/fungus/parasite) gets into our body, our immune system creates antibodies…