A second cluster of COVID-19 cases in one of Onslow County’s public schools has been announced by the school district. A cluster of six cases was confirmed at Dixon High School, Onslow County Schools announced Tuesday morning but did not indicate whether the cases involved staff or students. According to the news release, the Onslow County Health Department notified OCS and DHS administrators late Friday that a cluster had been identified. The health department also reported the information to the N.C. Department of Health and Human Services. NCDHHS defines a cluster as a minimum of 5 cases with symptom onset or initial positive test results within a 14-day period and a probable common linkage between cases.