Mississippi’s top public health official said Monday that the state is seeing a rapid increase in COVID-19 cases in July. “4th wave is here,” Dr. Thomas Dobbs, the state health officer, wrote on Twitter.  The Mississippi State Department of Health said 2,326 new cases of COVID-19 were confirmed Friday through Sunday. That is the largest three-day increase of cases reported in the state since February.  As of Monday, the Health Department said Mississippi has had 329,130 confirmed cases of the virus since the start of the pandemic in the spring of 2020. The department said 7,468 people in the state had died from the virus.