Some warn it’s dangerous to set a timetable, given the scientific unknowns and the danger of rushing testing.
President Trump formally unveiled an initiative Friday afternoon aimed at making hundreds of millions of doses of a coronavirus vaccine broadly available by year’s end — a goal that many scientists say is unrealistic and could even backfire by shortchanging safety and undermining faith in vaccines more broadly.
The Rose Garden news conference added to a week of confusing and contradictory remarks about the prospects and timeline for a vaccine, which is seen as the key to returning to normal life. A day earlier, a former top U.S. vaccine official testified before Congress that he was doubtful about the 12-to-18-month time frame frequently touted as a goal. The head of the National Institute of Allergy and Infectious Diseases testified Tuesday that 12 to 18 months was possible but there was no guarantee a vaccine would work at all.
But Trump and other officials projected certainty Friday that an effective vaccine would be widely available by year’s end from among 14 promising candidates that had been winnowed from a field of more than 100. The chief scientist of the new initiative, pharmaceutical industry veteran Moncef Slaoui, even teased that he had seen early clinical data from an unspecified vaccine trial that gave him hope. Continue reading.