Covid-19 live updates: Moderna says its vaccine triggers immune response in teenagers, will seek FDA approval

As a reader service, here is a timeline of key events, including important articles, that have led to this reassessment. In some instances, important information was available from the start but was generally ignored. But in other cases, some experts fought against the conventional wisdom and began to build a credible case, rooted in science, that started to change people’s minds.

Source: WP