{"batchcode": "EH9899", "histograms": [{"histogram": {"Headache": 14, "Pain": 11, "Chills": 10, "SARS-CoV-2 test negative": 10, "Fatigue": 8, "Nausea": 6, "Pyrexia": 5, "SARS-CoV-2 test": 5, "Cough": 4, "Injection site pain": 4, "Myalgia": 4, "Rhinorrhoea": 4, "Body temperature increased": 3, "Dizziness": 3, "Nasal congestion": 3, "Vomiting": 3, "Oropharyngeal pain": 2, "SARS-CoV-2 antibody test negative": 2, "Sinus congestion": 2, "Abdominal pain": 1, "Arthralgia": 1, "Asthenia": 1, "Diarrhoea": 1, "Drainage": 1, "Dyspnoea": 1, "Feeling hot": 1, "Flushing": 1, "Injection site erythema": 1, "Lymph node pain": 1, "Malaise": 1, "Migraine": 1, "Sluggishness": 1, "Tinnitus": 1, "Vertigo": 1, "Wheezing": 1}, "batchcodes": ["EH9899"]}]}