{"batchcode": "049121A", "histograms": [{"histogram": {"Arthralgia": 2, "Back pain": 1, "Blister": 1, "COVID-19": 1, "Chest pain": 1, "Device issue": 1, "Headache": 1, "Injection site erythema": 1, "Injection site haemorrhage": 1, "Injection site induration": 1, "Injection site inflammation": 1, "Injection site swelling": 1, "Injection site warmth": 1, "Musculoskeletal stiffness": 1, "Neck pain": 1, "Pain": 1, "Palpitations": 1, "Pruritus": 1, "Pyrexia": 1, "Seizure": 1, "Urticaria": 1}, "batchcodes": ["049121A"]}]}