{"batchcode": "EN6119", "histograms": [{"histogram": {"Headache": 2, "Arthralgia": 1, "Chills": 1, "Erythema": 1, "Fatigue": 1, "Pharyngeal swelling": 1, "Vaccination site pain": 1, "Vertigo positional": 1}, "batchcodes": ["EN6119"]}]}