Federal health authorities are leaning toward recommending that use of the Johnson & Johnson coronavirus vaccine resume, possibly as soon as this weekend - a move that would include a new warning about a rare complication involving blood clots but probably not call for age restrictions.

WASHINGTON - A mostly maskless White House event last weekend suspected at the center of a coronavirus outbreak that has afflicted President Donald Trump was held in conflict with a District of Columbia government ban on gatherings of more than 50 people, alarming local officials and health experts who fear the potential of community spread.