{"batchcode": "030421B", "histograms": [{"histogram": {"Asthenia": 1, "Chills": 1, "Computerised tomogram": 1, "Condition aggravated": 1, "Dyspnoea": 1, "Erythema": 1, "Fatigue": 1, "Magnetic resonance imaging": 1, "Nausea": 1, "No adverse event": 1, "Pain": 1, "Pain in extremity": 1, "Pruritus": 1, "Pyrexia": 1, "Vaccine positive rechallenge": 1, "Vertigo": 1}, "batchcodes": ["030421B"]}]}