Get vaccinated: The vaccines available in the United States offer excellent protection against severe illness and death from the coronavirus, including delta. The CDC director, Dr. Rochelle Walensky, said in July that more than 97% of people entering hospitals with COVID were unvaccinated. Get your second shot: If you got a first shot of the Pfizer or Moderna vaccine but missed the recommended timeframe for a second shot, you can still get it. Thereâ€s no time limit on getting your second shot. It will increase your protection. Wear a mask.