_______ company applied for emergency use approval of its single shot COVID-19 vaccine in the United States on February 4 ?

a) Sanofi
b) Novavax
c) Merck & Co
d) Johnson & Johnson

Johnson & Johnson on February 4, 2021 applied for emergency approval of its single-shot coronavirus vaccine in the United States. Johnson & Johnson’s COVID-19 vaccine is the first of its kind to reach the final stage and it could prove to be a potential game-changer in the battle against the COVID-19 pandemic.