{"batchcode": "ER1894", "histograms": [{"batchcodes": ["ER1894"], "histogram": {"COVID-19": 2, "Drug ineffective": 2, "Body temperature": 1, "Chills": 1, "Cough": 1, "Fatigue": 1, "Myalgia": 1, "Nasopharyngitis": 1, "Oropharyngeal pain": 1, "Pain in extremity": 1, "Pyrexia": 1, "SARS-CoV-2 test": 1, "Suspected COVID-19": 1, "Vaccination failure": 1}}]}