Print San Diego County’s daily new-case total dipped below 1,000 for the first time since Nov. 29 Tuesday as the number of vaccination locations continued to increase despite continued uncertainty that there will be enough doses to meet the region’s demand. That total landed just before the City of San Diego announced its first direct vaccine shipment of 1,200 doses, which will be used to inoculate people experiencing homelessness starting Wednesday morning. Earlier in the day, the region’s fourth vaccination super station opened in La Mesa even as UC San Diego announced its intention to open a fifth such center in Rimac Arena on its campus Monday.