{"batchcode": "PN3543", "histograms": [{"batchcodes": ["PN3543"], "histogram": {"Immunisation": 2, "Angioedema": 1, "Axillary pain": 1, "COVID-19": 1, "Decreased appetite": 1, "Dizziness": 1, "Drug ineffective": 1, "Feeling abnormal": 1, "Headache": 1, "Illness": 1, "Night sweats": 1, "Peripheral swelling": 1, "SARS-CoV-2 test": 1}}]}