The hard truth: There’s no way to predict which — if any — vaccine will work safely, or even to name a front-runner. Fauci has cautioned that even if everything goes perfectly, 12 to 18 months to develop a vaccine would set a speed record — and January will mark a year since the National Institutes of Health began creating its own COVID-19 vaccine, now in trials with Moderna Inc. “I can be a guinea pig.”The initial vaccine candidates work in a variety of ways. Different types of vaccines work better in some virus families than others. “In 20/20 hindsight, we should have worked harder on coronavirus vaccines back then,” said Dr. Sten Vermund, dean of the Yale School of Public Health.

Source: ABC News May 04, 2020 05:03 UTC