Raising the total caseload to 64,87,837 in the state, Kerala recorded 4,064 fresh COVID-19 infections. Of the deaths recorded, 15 were reported in the last 24 hours, 37 were those which occurred in the last few days but were not recorded due to late receipt of documents and 160 were designated as COVID-19 deaths after receiving appeals based on the new guidelines of the Centre and the directions of the Supreme Court, the release said.