{"batchcode": "EY0581", "histograms": [{"histogram": {"Syncope": 8, "Blood pressure measurement": 5, "Hypotension": 5, "Chest pain": 4, "Dizziness": 3, "Pyrexia": 3, "SARS-CoV-2 test": 3, "Arthralgia": 2, "Dysphagia": 2, "Headache": 2, "Pneumonia": 2, "Vaccination site pain": 2, "Angioedema": 1, "Arrhythmia": 1, "Asthenia": 1, "Back pain": 1, "Blood pressure decreased": 1, "Blood pressure fluctuation": 1, "Body temperature increased": 1, "Bradycardia": 1, "C-reactive protein increased": 1, "COVID-19": 1, "Chills": 1, "Circulatory collapse": 1, "Diarrhoea": 1, "Drug ineffective": 1, "Dyspnoea": 1, "Hyperhidrosis": 1, "Hypersensitivity": 1, "Lymphadenopathy": 1, "Myalgia": 1, "Myocardial infarction": 1, "Oropharyngeal pain": 1, "Palpitations": 1, "Pericarditis": 1, "Peripheral swelling": 1, "Polymerase chain reaction": 1, "SARS-CoV-2 test negative": 1, "Troponin": 1, "Troponin increased": 1, "Ultrasound scan": 1, "Vomiting": 1}, "batchcodes": ["EY0581"]}]}