{"batchcode": "EK9230", "histograms": [{"histogram": {"COVID-19": 1, "Cough": 1, "Dyspnoea": 1, "Ear pain": 1, "Fatigue": 1, "Nasal congestion": 1, "SARS-CoV-2 test positive": 1, "Toothache": 1}, "batchcodes": ["EK9230", "EL9261"]}, {"histogram": {"Body temperature": 1, "Limb discomfort": 1, "Vaccination site pain": 1}, "batchcodes": ["EK9230"]}]}