{"batchcode": "031D21A", "histograms": [{"histogram": {"Acute myocardial infarction": 1, "Asthenia": 1, "Blood sodium decreased": 1, "COVID-19": 1, "Catheterisation cardiac abnormal": 1, "Coronary artery disease": 1, "Decreased appetite": 1, "Diarrhoea": 1, "Ejection fraction decreased": 1, "Fall": 1, "Fatigue": 1, "Hyponatraemia": 1, "Hypotension": 1, "Nausea": 1, "Retching": 1, "SARS-CoV-2 test positive": 1}, "batchcodes": ["007M2A", "023M20A", "031D21A"]}, {"histogram": {"Arthralgia": 1, "Atrial fibrillation": 1, "Blood pressure abnormal": 1, "COVID-19": 1, "COVID-19 pneumonia": 1, "Cardiac arrest": 1, "Computerised tomogram abnormal": 1, "Computerised tomogram thorax abnormal": 1, "Death": 1, "Deep vein thrombosis": 1, "Dialysis": 1, "Dyspnoea": 1, "Electrocardiogram abnormal": 1, "Endotracheal intubation": 1, "Gait disturbance": 1, "General physical health deterioration": 1, "Haemofiltration": 1, "Heart rate abnormal": 1, "Life support": 1, "Lung infiltration": 1, "Multiple organ dysfunction syndrome": 1, "Pain in extremity": 1, "Pulmonary oedema": 1, "Respiration abnormal": 1, "Respiratory failure": 1}, "batchcodes": ["009C21A", "031D21A"]}, {"histogram": {"Vaccination site pain": 1}, "batchcodes": ["031D21A"]}]}