USING SOME TYPES OF INTERVENTION VARIABLES TO STUDY THE EFFECT OF THE VACCINE ON THE NUMBER ON THE NUMBER OF CORONAVIRUS INFECTIONS USING THE INTERVENTION ANALYSIS MODEL. IJCB [Internet]. 2024 Oct. 25 [cited 2024 Dec. 22];20(1):840-56. Available from: https://ijocb.com/index.php/IJCB/article/view/62