Most Omicron COVID-19 cases reported in the United States are experiencing mild symptoms so far, said Centers for Disease Control and Prevention (CDC) Director Rochelle Walensky on Thursday. “The disease is mild,” Rochelle Walensky told The Associated Press in an interview, noting that symptoms include cough, congestion, and fatigue. No Omicron-related deaths have been reported in the United States or around the world to date. One person in the United States has been hospitalized so far. The Delta COVID-19 variant still accounts for most of the cases in the United States, officials said. About 40 cases have been reported in the United States after it was first named by the World Health Organization (WHO) late last month. Most of the American cases are young adults, and about a third recently traveled internationally, the CDC told AP. “What we generally know is the more mutations a variant has, the higher level …