TY - JOUR T1 - COVAX delivers its 1 billionth COVID-19 vaccine dose JF - Saudi Medical Journal JO - Saudi Med J SP - 223 LP - 223 VL - 43 IS - 2 A2 - , Y1 - 2022/02/01 UR - http://smj.org.sa/content/43/2/223.abstract N2 - ER -