Table 2 Predefined and postdefined symptoms and syndromes of infectious disease

Fever

Sudden onset of fever (≥ 38°C) and/or warm to the touch with suspicion of fever with or without other symptoms

Chickenpox

Sudden rash of small red bumps, followed by itchy blisters and crust

Gastroenteritis

Diarrhea and/or vomiting

Ear ache

Sudden onset of aching ear, with or without listlessness and ear infection confirmed by physician or parent(s)

Impetigo

Expanding small red papules followed by a honey-colored crust.

Influenza-like illness

Fever with ≥ 1 general symptoms (headache and/or febrile feeling and/or listlessness) and ≥ 1 respiratory symptoms (coughing and/or runny nose and/or throat ache)

Runny ear

Light yellow, watery purulent discharge from ear that may or may not smell

Common cold

Sudden onset of continuous sneezing and/or coughing and/or headache and/or throat ache and/or coughing with or without fever (≥ 38°C)

Otitis media

Ear ache and/or runny ear with fever and/or common cold

Diarrhea

Sudden, non-chronic, onset of > 3 episodes of watery stools per day

Eye infection

Red eyes and swollen eyelids with or without yellow/green mucal discharge from eye

Vomiting

Sudden, non-chronic, onset of > 3 emetic episodes per day

Coughing

Sudden and frequent occurring tussis

Exanthema

Spots on skin, rash

Other symptoms

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