{"batchcode": "0161M20A", "histograms": [{"batchcodes": ["0161M20A", "036A21A"], "histogram": {"COVID-19": 1, "SARS-CoV-2 test positive": 1}}, {"batchcodes": ["0161M20A"], "histogram": {"Fatigue": 1, "Pallor": 1, "Vaccination site erythema": 1, "Vaccination site induration": 1, "Vaccination site pain": 1, "Vaccination site swelling": 1, "Vaccination site warmth": 1}}]}