{"batchcode": "EW0179", "histograms": [{"histogram": {"Headache": 2, "Arthralgia": 1, "Asthenia": 1, "Head discomfort": 1, "Pain": 1, "Paraesthesia": 1, "Pruritus": 1, "Vaccination site pruritus": 1}, "batchcodes": ["EW0179"]}]}