{"batchcode": "EW2245", "histograms": [{"histogram": {"COVID-19": 1, "SARS-CoV-2 test positive": 1, "Vaccination failure": 1}, "batchcodes": ["EW2245", "NA0224"]}, {"histogram": {"Headache": 99, "Asthenia": 72, "Fatigue": 69, "Dizziness": 65, "Sensitive skin": 55, "Pain": 54, "Nausea": 50, "Myalgia": 46, "Dyspnoea": 43, "Respiratory distress": 41, "Body temperature": 38, "Arthralgia": 37, "Pyrexia": 36, "Chills": 35, "Blood pressure measurement": 32, "Tachycardia": 30, "Cough": 27, "Vomiting": 27, "Vaccination site pain": 24, "Hypertension": 21, "Pruritus": 19, "Oedema": 16, "Oropharyngeal pain": 15, "Paraesthesia": 15, "Body temperature increased": 14, "Erythema": 14, "Inflammation": 14, "Rash": 13, "Diarrhoea": 12, "Irritability": 11, "Decreased appetite": 10, "Malaise": 10, "Rhinorrhoea": 10, "Abdominal pain": 9, "Oxygen saturation": 9, "Muscular weakness": 8, "Nodule": 8, "Pain in extremity": 8, "Hyperhidrosis": 7, "Syncope": 7, "Anxiety": 6, "Chest pain": 6, "Hypokinesia": 6, 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