{"batchcode": "ET2659", "histograms": [{"batchcodes": ["ET2659"], "histogram": {"Alopecia": 1, "Arrhythmia": 1, "Condition aggravated": 1, "Dizziness": 1, "Fatigue": 1, "Headache": 1, "Myalgia": 1, "Nausea": 1, "Ocular myasthenia": 1, "Tachycardia": 1, "Vaccination site pain": 1, "Vaccination site swelling": 1}}]}