{"batchcode": "031321A", "histograms": [{"histogram": {"Headache": 4, "Chills": 2, "Fatigue": 2, "Nausea": 2, "Pyrexia": 2, "Abdominal pain upper": 1, "Arthralgia": 1, "Body temperature": 1, "Dizziness": 1, "Eating disorder": 1, "Fall": 1, "Feeling abnormal": 1, "Gait disturbance": 1, "Heart rate": 1, "Heart rate increased": 1, "Herpes zoster": 1, "Hypoaesthesia": 1, "Insomnia": 1, "Mobility decreased": 1, "Pain": 1, "Pruritus": 1, "Skin burning sensation": 1, "Tremor": 1, "Vaccination complication": 1, "Vaccine positive rechallenge": 1}, "batchcodes": ["031321A"]}]}