Quick answer
Hantavirus symptoms may start with fever, muscle aches, headache, dizziness, chills, nausea, vomiting, diarrhoea, or abdominal pain. Severe illness can include breathing difficulty and needs urgent care.
This page cannot diagnose you. If you have severe symptoms or possible rodent exposure, contact a qualified health worker immediately.
Early symptoms to watch
Danger signs
Get urgent medical help if symptoms become severe, especially breathing difficulty, chest tightness, confusion, fainting, signs of shock, or symptoms after cleaning rodent-contaminated areas.
Why Nigerians should compare with Lassa fever
In Nigeria, Lassa fever is a more familiar rodent-linked public-health concern. Do not assume a fever is malaria, Lassa fever, or hantavirus without medical evaluation.
Related: Hantavirus explained, Hantavirus vs Lassa fever, Lassa fever vs malaria.