{"batchcode": "022M201A", "histograms": [{"histogram": {"Chills": 1, "Embolism": 1, "Headache": 1, "Hyperhidrosis": 1, "Nausea": 1, "Neck pain": 1, "Palpitations": 1, "Paraesthesia": 1, "SARS-CoV-2 test negative": 1, "Sleep disorder": 1, "Thrombosis": 1, "Vaccination site pain": 1}, "batchcodes": ["022M201A"]}]}