{"batchcode": "EW3344", "histograms": [{"histogram": {"SARS-CoV-2 test": 2, "Abdominal pain upper": 1, "Asphyxia": 1, "Asthenia": 1, "Blood pressure increased": 1, "Blood pressure measurement": 1, "Chest pain": 1, "Choking": 1, "Choking sensation": 1, "Cough": 1, "Dyspnoea": 1, "Feeling cold": 1, "Feeling hot": 1, "Flatulence": 1, "Headache": 1, "Heart rate": 1, "Heart rate increased": 1, "Oropharyngeal pain": 1, "Oxygen saturation": 1, "Oxygen saturation decreased": 1, "Spirometry": 1, "Vaccination site pain": 1}, "batchcodes": ["EW3344"]}]}