{"batchcode": "EK9031", "histograms": [{"histogram": {"Body temperature": 1, "Chills": 1, "Fatigue": 1, "Feeling hot": 1, "Lymph node pain": 1, "Lymphadenopathy": 1, "Pyrexia": 1, "Vaccination site pain": 1}, "batchcodes": ["EK9031"]}]}