Moderna to AstraZeneca: Tracking COVID-19 Vaccines

A total of 48 vaccine candidates are under clinical trials worldwide, while those in preclinical evaluation amount to 164, as per the recent World Health Organization (WHO) vaccine landscape.

A total of 48 vaccine candidates are under clinical trials worldwide, while those in preclinical evaluation amount to 164, as per the recent World Health Organization (WHO) vaccine landscape. NewsClick presents a round-up.