{"batchcode": "ERS737", "histograms": [{"histogram": {"Chills": 1, "Dizziness": 1, "Headache": 1, "Hot flush": 1, "Nausea": 1, "Pain in extremity": 1, "Rhinorrhoea": 1, "Vaccination site pain": 1}, "batchcodes": ["ERS737"]}]}