coronavirus January 15, 2021 5:04 pm Supply Issues Hinder COVID-19 Vaccination Efforts Santa Clara County is trying to pick up the pace when it comes to COVID-19 vaccinations, but the biggest constraint to vaccinating more people is vaccine supply. Robert Handa reports. US & World Videos 2:43 Report: California tourism numbers top pre-pandemic levels, Bay Area lags behind 1:08 Antioch school supervisor placed on leave after NBC Bay Area worker bullying report 3:23 UC Davis finds brain sizes are growing 3:36 Waymo expands driverless taxi service 2:32 Officials release footage of suspected vehicle involved in mail carrier robbery