South Carolina recently had its biggest spike in reported influenza cases so far this season, the latest state health report shows. There were 869 lab-confirmed tests reported the week of Dec. 8-14, the latest data available, according to the South Carolina Department of Public Health. That’s a huge jump over the 155 lab-confirmed tests reported a week earlier – and almost as much as the total 875 lab-confirmed tests reported in the state up to that point.