November 27, 2020 7:59 am COVID-19 Immunity: How Long Do Antibodies Last? COVID-19 patients develop a certain level of immunity after battling the virus, but new studies find it may not last long. US & World Videos 2:58 Victims of devastating San Diego County brush fires offer advice on preparing for fire danger 2:43 Notre Dame to contend for CFP National Championship 2:09 Lawson-Remer discusses 2025 priorities for San Diego County Board of Supervisors 5:07 San Diego schools scramble to keep up with cyber threats 2:36 Beware of scams when donating to LA wildfire victims. Here's what to know
