SANTA ANA—Orange County reported 191 new cases of COVID-19 and 13 additional deaths Feb. 28, although officials said those numbers might be low for the next few days due to technical issues with the state reporting database. Feb. 28’s numbers brought the county totals to 246,455 cases and 3,917 fatalities since the pandemic began. Hospitalizations due to the coronavirus continued to decline, dropping from 444 Feb. 27 to 421, with the number of COVID-19 patients in intensive care units increasing slightly from 128 to 132. The county has 29.8 percent of its intensive care unit (ICU) beds available and 62 percent of its ventilators, according to the Orange County Health Care Agency. The county’s test positivity rate—which is reported weekly—improved from 7.8 percent the previous week to 5.4 percent Feb. 23, and the adjusted case rate per 100,000 on a seven-day average with a seven-day lag improved from 20.7 to …