ክትባቶቹ እንዲኖሩ ማድረግ የሳይንስ ምርመራ ሲሆን እንዲቀርቡ እና በተመጣጣኝ ዋጋ እንዲገኙ ማድረግ ደግሞ የሰብዓዊነት ፈተና ነው።
While making the vaccines available was a test of science, making them accessible and affordable is going to be a test of humanity.