{"batchcode": "037U20A", "histograms": [{"histogram": {"COVID-19": 1, "Drug ineffective": 1, "Illness": 1, "Injection site erythema": 1, "Injection site pruritus": 1, "Injection site warmth": 1, "Type IV hypersensitivity reaction": 1, "Unevaluable event": 1}, "batchcodes": ["037U20A"]}]}