Pharmaceutical company Merck says it is shelving its two COVID-19 vaccine candidates, saying that the results of clinical trials fell short of its goals.

CHINA – 2020/03/23: In this photo illustration the American multinational pharmaceutical company Merck logo seen displayed on a smartphone with a computer model of the COVID-19 coronavirus on the background. (Photo Illustration by Budrul Chukrut/SOPA Images/LightRocket via Getty Images)