The strategy would apply for all vaccinated people. A decision for those who are immunocompromised and face greater risk from the virus is expected sooner, the official said Thursday…

The World Health Organization on Wednesday called for a moratorium on booster shots until at least the end of September, to enable at least 10% of each country’s population to be vaccinated. But despite the organization’s global call, Germany, France, Israel, and the UK have all indicated that they will be forging ahead with plans to begin administering Covid-19 booster shots starting in, or before, September.

While he did not speak on timing of a booster shot recommendation, US Surgeon General Dr. Vivek Murthy suggested on Wednesday that the country is capable of contributing to the global vaccination effort while still providing vaccines to Americans — even potential booster doses.

“I recognize why the WHO has raised this concern, they are concerned about the whole world and frankly, we are too, because we will not get through this pandemic unless we make sure that countries around the world have enough vaccine to make sure that cases come down and stay down,” Murthy told MSNBC. “If there’s uncontrolled spread of the virus in another country that means variants can arise, those can end up here in the United States, we don’t want that.”