HantaVirusTests

Symptoms

Hantavirus Symptoms

Early hantavirus illness can look like other fever or respiratory infections, so exposure history and warning signs matter.

Early symptoms

  • Fever, chills, headache, and muscle aches.
  • Marked fatigue or a strong unwell feeling.
  • Nausea, vomiting, diarrhea, abdominal pain, or dizziness.
  • Symptoms that follow rodent exposure, contaminated dust, travel, or a known Andes virus contact deserve closer attention.

Urgent warning signs

Breathing symptoms or rapid worsening after a flu-like phase should be treated as urgent, especially after a plausible exposure.

  • Shortness of breath.
  • Chest pain or tightness.
  • Faintness, confusion, cold skin, or shock-like symptoms.
  • Rapid deterioration.

Symptoms are not proof

Symptoms alone cannot confirm hantavirus. Influenza, COVID-19, dengue, leptospirosis, sepsis, and other infections can overlap. Clinicians interpret symptoms with exposure history and laboratory testing.

Last updated

2026-05-16

Editorial review

Editorially reviewed against WHO and CDC public-health sources. No clinician medical-review claim is made.

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Medical sources

WHO hantavirus fact sheetWHO Disease Outbreak NewsCDC hantavirus overviewCDC clinical overviewCDC prevention guidance

Educational information only. This site does not diagnose, treat, or replace professional medical care.