Moderna vaccine 94.5% effective in second breakthrough

WASHINGTON: US biotech firm Moderna on Monday announced its experimental vaccine against Covid-19 was 94.5% effective, marking a second major breakthrough in the vaccine hunt.

Moderna vaccine 94.5% effective in second breakthrough
WASHINGTON: US biotech firm Moderna on Monday announced its experimental vaccine against Covid-19 was 94.5% effective, marking a second major breakthrough in the vaccine hunt.