Photo Story: Coronavirus vaccine proceeding faster than usual, but would still take at least a year

Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said the timeline for the development of a coronavirus vaccine was proceeding faster than usual, but would still take at least a year. He said small Phase 1 trials have already begun, and that he hoped larger Phase 2 or Phase 3 trials could begin by the middle of the summer.

Dr. Fauci stressed the importance of making sure a vaccine is safe and that it did not actually “enhance the infection.”

There are at least 43 Covid-19 vaccines in development around the world in the labs of universities and companies. Most of these are DNA or RNA vaccines. One vaccine, made in 63 days by an American biotech firm named Moderna, moved into human trials on 16 March, entering the bloodstream of the first of 45 healthy adult volunteers in Seattle.