(CNN)As the US may miss a vaccination goal set by President Joe Biden for July 4, officials are warning against complacency and states are ramping up measures to encourage reluctant residents to get a Covid-19 vaccine.

The country was averaging just more than 1 million Covid-19 vaccine doses administered per day as of Friday, according to the Centers for Disease Control and Prevention. That's down from a peak average in early April of 3.3 million per day.

Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said Friday that the best way for the country to avoid Covid-19 surges and further economic pain is to get vaccinated.