Moderna asks US to authorize Covid-19 vaccine for children under age six

Moderna submits data to FDA, in hopes low-dose shots to protect babies, toddlers and preschoolers will be available by summer

Moderna on Thursday asked US regulators to authorize low doses of its Covid-19 vaccine for children younger than six, a long-awaited move toward potentially making injections available for millions of children by summer.

Frustrated families are waiting impatiently for a chance to protect the nation's youngest kids as all around them people shed masks and other public health precautions - even though highly contagious coronavirus mutants continue to spread.