The vaccine has been tested on adults as well as children above 12 and if the regulatory committee is satisfied with the submitted data and documents, the vaccine will be approved for emergency use soon, officials said. An approval can hasten the opening of schools although vaccine supply will remain a concern.The vaccine has been tested on adults as well as children above 12 and if the regulatory committee is satisfied with the submitted data and documents, the vaccine will be approved for emergency use soon, officials said. An approval can hasten the opening of schools although vaccine supply will remain a concern.