{"batchcode": "FF2018", "histograms": [{"histogram": {"Body temperature": 75, "Blood pressure measurement": 35, "Oxygen saturation": 27, "Heart rate": 22, "Anaphylactic reaction": 19, "Blood pressure decreased": 16, "Dyspnoea": 15, "Nausea": 15, "Presyncope": 15, "Loss of consciousness": 14, "Dizziness": 12, "Pyrexia": 12, "Blood test": 11, "Cough": 10, "Feeling abnormal": 9, "Blood pressure increased": 8, "Fall": 8, "Headache": 8, "Rash": 7, "Cold sweat": 6, "Erythema": 6, "Hyperhidrosis": 6, "Hypoaesthesia": 6, "Pain in extremity": 6, "Pallor": 6, "Pruritus": 6, "Altered state of consciousness": 5, "Bradycardia": 5, "Computerised tomogram": 5, "Investigation": 5, "Magnetic resonance imaging": 5, "Seizure": 5, "Tremor": 5, "Urticaria": 5, "Vomiting": 5, "Asthenia": 4, "Chest discomfort": 4, "Chest pain": 4, "Haemoglobin": 4, "Heart rate decreased": 4, "Oxygen saturation decreased": 4, "Peripheral swelling": 4, "Platelet count": 4, "Thrombosis": 4, "Vaccination site pain": 4, 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