{"batchcode": "EP7449", "histograms": [{"batchcodes": ["EP7449"], "histogram": {"Arthralgia": 1, "Blood pressure decreased": 1, "Blood pressure measurement": 1, "Body temperature": 1, "Chills": 1, "Fatigue": 1, "Headache": 1, "Heart rate": 1, "Loss of consciousness": 1, "Malaise": 1, "Myalgia": 1, "Nausea": 1, "Oxygen saturation": 1, "Presyncope": 1, "Pyrexia": 1, "Vaccination site reaction": 1}}]}