A 14-year-old boy from Missouri was bitten by a shark while vacationing in Daytona Beach Shores, marking the fourth shark bite incident in Volusia County this month. The incident occurred Wednesday morning as the teenager was wading in knee-deep water. The shark bit his left foot, causing non-life-threatening injuries that required hospitalization. The type of shark involved remains unknown. This latest attack follows three other shark bite incidents within the past week alone. On Monday, another 14-year-old boy was bitten on the calf during junior lifeguard training in Ponce Inlet. Last Frida…