Symptoms and warning signs

Early general symptoms

• Fever and chills
• Headache
• Muscle aches, often in large muscle groups
• Marked fatigue or a strong unwell feeling
• Dizziness
• Nausea, vomiting, diarrhea, or abdominal pain

Breathing red flags

• Cough
• Shortness of breath
• Chest tightness or chest pain
• Rapid worsening after a flu-like phase
• Shock-like signs such as faintness, confusion, cold skin, or very low blood pressure

Breathing difficulty after a possible exposure should be handled urgently.

Kidney or bleeding features seen in HFRS

• Low blood pressure
• Reduced urination or kidney problems
• Bleeding tendency or bruising
• Severe back or abdominal pain
• Fluid balance problems that require hospital monitoring