Severe Fever

Severe Fever

Severe fever is a medical emergency and requires immediate medical attention. It is characterized by a fever that is greater than 104°F (40°C) and is accompanied by other symptoms, such as chills, headache, muscle aches, fatigue, and changes in consciousness. Severe fever can be caused by a variety of illnesses, including bacterial and viral infections.


The signs and symptoms of severe fever include:

  • High fever (greater than 104°F/40°C)
  • Chills
  • Headache
  • Muscle aches
  • Fatigue
  • Nausea and vomiting
  • Changes in consciousness
  • Visual disturbances
  • Confusion
  • Difficulty breathing


Severe fever can be caused by a number of different illnesses, including:

  • Bacterial infections, such as meningitis or sepsis
  • Viral infections, such as influenza or HIV
  • Malaria
  • Drug reactions
  • Heatstroke
  • Neuroleptic malignant syndrome (NMS)


Treatment for severe fever depends on the underlying cause. Treatment may include antibiotics, antiviral medications, anti-malarial medications, or other medications depending on the specific cause. Intravenous fluids and medications to reduce fever and relieve pain may also be used. Hospitalization may be necessary in some cases.


The best way to prevent severe fever is to take steps to reduce your risk of infection. This includes measures such as washing your hands regularly, avoiding close contact with people who are sick, cleaning and disinfecting surfaces that are frequently touched, and getting vaccinated when recommended by your doctor. It is also important to be aware of signs and symptoms of severe fever and see a doctor immediately if you experience any of the symptoms.