With novel coronavirus cases rising across the U.S. again, health experts are reiterating the simplest safety measures Americans can take to help protect themselves amid another surge. Along with wearing masks, social distancing and washing hands, some Americans have taken other precautions to clean or sanitize things like phones, groceries and other objects that could potentially harbor the virus. But Dr. Anthony Fauci, director of the National Institute for Allergy and Infectious Diseases, indicated that might not be necessary.