Johnson & Johnson announced Monday that the first candidate for its experimental coronavirus vaccine has been selected, and trials will begin by September.
J&J also said that if the first phase of testing goes as planned, the vaccine could be ready for administration under emergency authorization beginning in early 2021. This is much earlier than the usual 18-month period it takes for a new vaccine to be tested, approved, and then manufactured.
The company has been working on a potential COVID-19 vaccine since January. Besides the leading candidate, J&J has also developed two back-ups in case in case the first one falters.