{"batchcode": "21C16-1", "histograms": [{"histogram": {"Arrhythmia": 1, "Bone pain": 1, "COVID-19": 1, "Cardiac discomfort": 1, "Dizziness": 1, "Dyspnoea": 1, "Headache": 1, "Hypoventilation": 1, "Limb discomfort": 1, "Myalgia": 1, "Pain": 1, "Vaccination failure": 1}, "batchcodes": ["21C16-1"]}]}