Final answer:
The prevalence of disease X has doubled in the last 10 years, meaning that many more people are being diagnosed with the disease every year.
Step-by-step explanation:
The statement is True. When the prevalence of a disease doubles, it means that the number of people being diagnosed with the disease has increased significantly over a specific period of time. In this case, disease X has doubled in prevalence over the last 10 years, indicating that a larger number of people are being diagnosed with disease X every year compared to 10 years ago.