{"batchcode": "04K20A", "histograms": [{"histogram": {"Chills": 1, "Erythema": 1, "Myalgia": 1, "Vaccination site erythema": 1, "Vaccination site pain": 1, "Vaccination site pruritus": 1, "Vaccination site warmth": 1}, "batchcodes": ["04K20A"]}]}