{"batchcode": "EWO181", "histograms": [{"batchcodes": ["EWO181"], "histogram": {"SARS-CoV-2 test": 2, "Blister": 1, "Burning sensation": 1, "Chest discomfort": 1, "Chest pain": 1, "Dyspnoea": 1, "Feeling abnormal": 1, "Muscle tightness": 1, "Pneumonia": 1, "Pruritus": 1, "Varicella": 1}}]}