{"batchcode": "UNK", "histograms": [{"histogram": {"Cardiac valve disease": 1, "Hospitalisation": 1, "Immune thrombocytopenia": 1, "Influenza": 1, "Lung disorder": 1, "Nasopharyngitis": 1, "Petechiae": 1, "Platelet count": 1, "Vaccination failure": 1}, "batchcodes": ["UNK"]}]}