{"batchcode": "031L201", "histograms": [{"batchcodes": ["031L201"], "histogram": {"Headache": 2, "COVID-19": 1, "Chest pain": 1, "Cough": 1, "Dizziness": 1, "Dyspnoea": 1, "Fatigue": 1, "Injection site erythema": 1, "Injection site induration": 1, "Injection site pruritus": 1, "Injection site swelling": 1, "Respiratory tract congestion": 1, "Rhinorrhoea": 1, "SARS-CoV-2 test positive": 1}}]}