Symptoms appear within a week after a mosquito bite. The acute phase lasts 3 to 4 days. Then symptoms go away. At the end of the acute phase, some people move to the toxic phase.
Some may not have symptoms. Those who do may have:
- Fever and chills
- Muscle pain
- Loss of appetite
- Nausea or vomiting
- High fever
- Belly pain
- Bleeding from the gums, nose, eyes, or stomach
- Vomit that appears black—caused by bleeding
- Yellowing of the skin—jaundice
- Confusion, seizure, or coma
The goal of treatment is to ease symptoms. It may include:
- Fluids by mouth or IV to prevent dehydration
- Medicines to lower fever and pain
- Dialysis (toxic phase) to help kidneys filter waste
- Transfusion (toxic phase) to replace blood lost through bleeding
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This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
Edits to original content made by Denver Health.
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Centers for Disease Control and Prevention https://www.cdc.gov
World Health Organization http://www.who.int
Public Health Agency of Canada https://www.canada.ca
Travel Health and Safety https://travel.gc.ca
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