{"batchcode": "EV2172", "histograms": [{"batchcodes": ["EV2172"], "histogram": {"Fatigue": 3, "Heart rate": 2, "Chills": 1, "Deafness bilateral": 1, "Extrasystoles": 1, "Headache": 1, "Heart rate decreased": 1, "Heart rate increased": 1, "Heart rate irregular": 1, "Malaise": 1, "Myalgia": 1, "Nausea": 1, "Pain": 1, "Pruritus": 1, "Pyrexia": 1, "Swelling": 1, "Thrombophlebitis superficial": 1, "Tinnitus": 1, "Vaccination site reaction": 1}}]}