{"batchcode": "1HD49A", "histograms": [{"histogram": {"Asymptomatic COVID-19": 1, "Breast pain": 1, "Chest pain": 1, "Drug ineffective": 1, "Dyspnoea": 1, "Malaise": 1, "Tachycardia": 1}, "batchcodes": ["1HD49A"]}]}