{"batchcode": "040C12A", "histograms": [{"histogram": {"Interchange of vaccine products": 2}, "batchcodes": ["040C12A", "FF2587"]}, {"histogram": {"Fatigue": 1, "Injection site pain": 1, "Lymph node pain": 1, "Lymphadenopathy": 1, "Myalgia": 1, "Tinnitus": 1}, "batchcodes": ["040C12A"]}]}