US infant bleeding episodes jump as vitamin K refusals rise, two studies find

Two new studies reveal a sharp rise in bleeding episodes among U.S. infants, directly linked to increasing refusals of routine vitamin K shots. The research, the first to connect the two trends, shows that as more parents decline the prophylactic injection, the incidence of dangerous hemorrhages climbs, underscoring the public-health impact of vaccine-hesitancy and the need for education on vitamin K's critical role in newborn care.