Health & Science 16 hours ago San Diego County holds first of several flu vaccine clinics San Diego County held the first of several flu vaccine clinics in El Cajon, hoping to prevent the spread of what can become a deadly disease. NBC 7’s Shelby Bremer reports. US & World Videos 0:48 San Diego FC to make Snapdragon debut on March 1 2:20 Halloween haunt in Pacific Beach created by 15-year-old twins as homage to grandpa 0:53 Trade your blood for free ‘Rocky Horror Show' tickets 2:50 During San Diego visit, acting U.S. Customs and Border Protection boss says enforcement has been enhanced 2:30 Voices of Our City, choir for people experiencing homelessness, prep for fundraiser