Developing a vaccine and bringing it to market often takes many years. But because of work that NIH was already doing when the COVID-19 pandemic began, researchers were able to come up with vaccines for this new virus much faster. What did this research do? There are many different coronaviruses. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.