San Diego County January 17, 2022 6:51 pm Public Health Experts Weigh in on Efficacy of Nasal Vs Saliva COVID-19 Tests NBC 7’s Kelvin Henry spoke to a doctor about nasal swab tests vs. saliva tests. US & World Videos 0:58 Philanthropist Joan Jacobs dies at 91 year old 2:32 How water pollution is changing how Imperial Beach lifeguards protect people 2:56 Pro-Palestinian protesters move to downtown jail 3:03 San Diego photographer remembers Callum Robinson, surfer found in Baja 2:41 Friends and family remember 3 surfers who disappeared in Mexico