Health Library
Infections & Fever
Dengue, flu, HFMD, gastroenteritis, travel-related fever and warning signs of severe infection — with practical Singapore safety guidance.
Guides
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Read what is relevant now. If a red flag is present, seek medical care rather than continuing to self-diagnose online.
Dengue in Singapore: Fever, Body Aches and Warning Signs Not to Miss
Dengue can begin like many viral illnesses. Learn the typical pattern, why hydration and medical review matter, and which bleeding or shock symptoms need urgent care.
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Food Poisoning and Gastroenteritis: The Main Risk Is Often Dehydration
Vomiting and diarrhoea are common, but persistent fluid loss can become dangerous. Learn what to drink, what to monitor and when blood, fever or dehydration needs medical care.
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Influenza: When “Just Flu” Deserves Earlier Medical Attention
Influenza can be much more severe than a common cold. Learn which people are at higher risk and when breathing symptoms, dehydration or persistent fever needs medical review.
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Hand, Foot and Mouth Disease: Mouth Ulcers, Blisters and Dehydration Risk
HFMD is common in young children but adults can be infected too. Learn what to look for, how to reduce spread and why hydration matters when mouth ulcers are painful.
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Fever After Travel: Tell the Doctor Where You Went
Fever after overseas travel can reflect common viral illness, but destination, mosquito exposure, food, animals and timing can change what doctors need to consider.
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Sepsis: When an Infection Starts Affecting the Whole Body
Sepsis is a dangerous response to infection that can progress quickly. Confusion, very fast breathing, low blood pressure or marked deterioration should not be watched at home.
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