{"batchcode": "FIRST:EJ1685/SE", "histograms": [{"batchcodes": ["FIRST:EJ1685/SE"], "histogram": {"Chest discomfort": 1, "Dyspnoea": 1, "Fatigue": 1, "Heart rate increased": 1, "Influenza A virus test negative": 1, "Influenza B virus test": 1, "Myocarditis": 1, "Respiratory syncytial virus test negative": 1, "SARS-CoV-2 test negative": 1}}]}