{"batchcode": "EY4834", "histograms": [{"histogram": {"Blood pressure measurement": 10, "COVID-19": 9, "Drug ineffective": 8, "Dyspnoea": 7, "Pyrexia": 6, "Blood pressure increased": 5, "Cough": 5, "Diarrhoea": 4, "SARS-CoV-2 test": 4, "Chest pain": 3, "Electrocardiogram": 3, "Hypertension": 3, "Nasopharyngitis": 3, "Syncope": 3, "Vaccination site pain": 3, "Body temperature": 2, "Decreased appetite": 2, "Dizziness": 2, "Dysarthria": 2, "Fall": 2, "Hypotension": 2, "Polymerase chain reaction": 2, "Tachypnoea": 2, "Vaccination failure": 2, "Abdominal pain": 1, "Abdominal pain upper": 1, "Acute kidney injury": 1, "Altered state of consciousness": 1, "Anaphylactic reaction": 1, "Arthralgia": 1, "Asymptomatic COVID-19": 1, "Bell's palsy": 1, "Blood glucose": 1, "Blood pressure decreased": 1, "Cerebrovascular accident": 1, "Chest discomfort": 1, "Chills": 1, "Chronic kidney disease": 1, "Chronic myeloid leukaemia": 1, "Conjunctivitis bacterial": 1, "Corticosteroid binding globulin test": 1, "Dysuria": 1, "Electrocardiogram T wave inversion": 1, "Headache": 1, "Hemiparesis": 1, "Hypersomnia": 1, "Hypertensive crisis": 1, "Hypokalaemia": 1, "Lethargy": 1, "Loss of consciousness": 1, "Peptic ulcer": 1, "Pneumonia pneumococcal": 1, "SARS-CoV-2 test positive": 1, "Suspected COVID-19": 1, "Troponin I": 1, "Urinary tract infection": 1, "Vomiting": 1}, "batchcodes": ["EY4834"]}]}