All of us like to find a way to end Covid 19. Specially, economy confronts with many problems. In attached JPG, i bring two predictions for covid 19 pandemic in Iran. Mathematical model predicts that after a fall in figure we will have a peak. However, right now, most of people in Iran used of vaccines. In addition, government forced on all to get vaccine. Even, students with 12 to 18 years old get vaccine. It has been heard that soonly, kids with ages between 3-12 years old will receive vaccine. As a man or woman, all of us like that this program will response and vaccines work. However, predictions of math show reverse result. Although, maybe, we should enter the factor of vaccine in mathematical model. It is good opportunity for scientists to examine response of covid 19 to program of vaccine for all. Even if we have a peak, however its height be smaller, we can say that vaccines act. Hope for ending Covid 19 in all countries.