Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: America's top infectious disease expert has told lawmakers that the US is seeing a "disturbing surge" in coronavirus infections in some states.

Top US health official Fauci warns of 'disturbing' new US surge