Several states have reached or surpassed President Joe Biden's goal of vaccinating 70 percent of the U.S. adult population by July 4. However, other states lag behind; in 15 states, less than half the adult population has received at least one dose of a COVID-19 vaccine.

In response to COVID-19 surges, California issued an order to preserve resources and ensure hospitals can care for critically ill patients. Most states adopt Advisory Committee on Immunization Practices recommendations for prioritization of vaccines, but 14 states modified the guidelines.

Newly approved state plan amendments in Alabama, Arizona, Minnesota, Washington, and Wyoming aim to increase flexibility to respond to the COVID-19 pandemic.