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Table 3 Frequency, outset and duration of different types of AEFI of children

From: Active surveillance study of adverse events following immunisation of children in the Czech Republic

Type of adverse events following immunisation Frequencya Outset of symptoms (days after vaccination, mean -range in days) Duration of symptoms (mean in days)
Local (rednes, swelling, pain) 62.8% 1.6 (1–8) 5.2
Abscess in application site 1.1% 5.5 (2–10) 16.0
Lymphadenitis 1.7% 20.9 (7–31) 44.3
Fever 26.8% 1.3 (1–7) 2.8
Alergic reaction 0.6% 0 (0) 1.5
Posvaccinal exanthema 4.5% 3.3 (2–9) 4.2
Arthralgia 1.7% 1.2 (1–5) 13.2
Excessive crying 4.2% 0.9 (0–4) 1.8
Hypotonic hyperactive epizode 1.4% 0 (0–1) 0.3
Gastrointestinal disorders 5.0% 1.4 (0–5) 2.2
Encephalopathy 2.2% 1.1 (1–7) 4.0
Convulsions 1.4% 0.5 (0–1) 0.5
Apnoe 0.3% 0.5 (0–1) 1.0
Others 8.4% 1.3 (0–8) 7.9
  1. aobserved more than one reaction per one child