US officials set stage for vaccination campaign for younger children

• US makes plans to approve vaccines for children five to 11
• Vaccinating children will reduce virus spread to adults - officials

US health officials are setting the stage for a national Covid-19 vaccination campaign for younger children, inviting state officials to order doses before the shots are authorized.

Pfizer's coronavirus vaccine is currently being given to people as young as 12 in the US. Over the next three weeks, federal officials plan to discuss making smaller-dose versions available to the nation's 28 million children between the ages of five and 11.