CarlsbadCitiesDel MarEncinitasEscondidoNewsOceansideRancho Santa FeRegionSan DiegoSan MarcosVistaVaccine supply issues continue, cause Del Mar site to shutter this weekendCoast News wire servicesMarch 10, 2021March 10, 2021 March 10, 2021March 10, 20210432 DEL MAR — COVID-19 vaccine shortfalls will close the Del Mar Fairgrounds vaccination super site again this weekend, and a technical error caused 1,800 vaccine...