{"batchcode": "01/12/2022", "histograms": [{"histogram": {"COVID-19": 1, "Chest X-ray abnormal": 1, "Pulmonary oedema": 1, "SARS-CoV-2 test positive": 1, "Syncope": 1, "Vaccine breakthrough infection": 1}, "batchcodes": ["01/12/2022", "EP7534", "EW0173"]}]}