{"batchcode": "FF2540", "histograms": [{"histogram": {"COVID-19": 1, "Heart rate increased": 1, "Heart rate irregular": 1, "Pharyngeal swelling": 1, "SARS-CoV-2 test": 1, "Throat tightness": 1, "Vaccination failure": 1}, "batchcodes": ["FF2540"]}]}