Hemorrhagic fever: what to know

The term covers infections that can disturb blood vessels, fluid balance, and the body’s ability to control bleeding. Early illness may resemble other fever-producing conditions, with headache, marked tiredness, muscle aches, nausea, vomiting, or diarrhoea. Some people later develop rash, unusual bruising, bleeding, severe weakness, or confusion.

A fever alone does not identify this condition. Travel or residence in an affected area, contact with animals or insects, exposure to an ill person, and recent healthcare contact can help clinicians judge the risk. Do not wait for bleeding before reporting a relevant exposure.

Contact urgent medical services before travelling to a clinic if you have fever after a relevant exposure or travel history. Tell the service about dates, locations, animal or insect contact, and anyone who is unwell around you. Avoid close contact, sex, shared needles, and contact with blood or body fluids until professionals give advice.

Rest and take fluids if you can swallow, but avoid self-medicating with aspirin or ibuprofen unless a clinician specifically advises it because these medicines can worsen bleeding. Use only medicines discussed with a healthcare professional.

Call emergency services for bleeding, black stools, blood in vomit, severe abdominal pain, repeated vomiting, fainting, confusion, difficulty breathing, or inability to keep fluids down. A rapidly worsening fever with profound weakness also needs immediate help. Mention the possible exposure before arrival so infection-control steps can be arranged.

Ask which exposure details matter, whether you need isolation advice, how fluids and symptoms will be monitored, and which medicines to avoid. Ask how household members should protect themselves while the cause is being assessed.