COVID-19 Vaccine Candidates Work In Different Ways

The video discusses the U.S. government's Operation Warp Speed, aiming to fast-track COVID-19 vaccine development with 14 potential candidates. It covers various vaccine platforms, including viral vector, inactivated, and mRNA technologies. Johnson & Johnson's efforts are highlighted, with a focus on their timeline and collaboration with the U.S. Department of Health. The video also addresses the challenges in vaccine development, emphasizing the need for extensive testing to ensure safety and efficacy.

What challenges are faced in the development of vaccines for COVID-19?

Why is it important to test vaccines in animals before human trials?