Here's the disclaimer from the Johns Hopkins corona virus website. Basically sez they make their data up from a bunch of reliable sources. It is certainly applicable for headlines, though

The Website relies upon publicly available data from multiple sources, that do not always agree. The Johns Hopkins University hereby disclaims any and all representations and warranties with respect to the Website, including accuracy, fitness for use, and merchantability. Reliance on the Website for medical guidance or use of the Website in commerce is strictly prohibited.