(AP Photo/David Zalubowski) Vials of Johnson & Johnson COVID-19 vaccine sit in the pharmacy of National Jewish Hospital for distribution early Saturday, March 6, 2021. Colorado has suspended the distribution of the Johnson & Johnson COVID-19 vaccine after federal authorities announced the investigation of six cases in which people who received the vaccine developed blood clots. “I think this pause is a strong reflection of the national oversight of vaccine safety, seeing events like this occur, something very rare, like these six blood clots, really does require us to take a moment and look around,” said Dr. Eric France, chief medical officer for the state health department during a press conference Tuesday. “The first question really is, are these events coincidental, just happening to follow the vaccine? Or are they somehow associated with vaccination? That will be the work of the next couple of days here in the United States.”