You might have seen it already on the top part of your feed.
Facebook rolled out an info panel featuring recent updates around the coronavirus outbreak. It contains links to content that promotes measures to prevent the spread of the novel coronavirus and contains general useful info.
The social network is obviously doing a lot to inform the community about ways to prevent COVID-19 and make sure that users have access to the relevant updates from trustworthy sources. And this was just another step among many others.