SYMPTOMS
Flavivirus infections progress quickly, with signs and symptoms appearing three to six days after your exposure. The infection’s initial symptoms are comparable to those of the influenza virus. They are as follows:
- Muscle pain
- Headaches
- Fever
- Joint pain
- Chills
Acute Stage
This stage typically lasts three to four days. Typical symptoms include:
- Backaches
- Headaches
- Fever
- Muscle pain
- Shivers
- Flushing
- Loss of appetite
- Joint pain
Symptoms will begin to fade after the acute stage has passed. Many individuals recover from flavivirus at this stage, but some develop a more severe form of the disease.
Toxic Stage
The symptoms you feel during the acute stage may go away for up to 24 hours. The symptoms may then reappear, along with new and more severe symptoms. These are some:
- Abdominal pain
- Delirium
- Decreased urination
- Heartbeat problems
- Seizures
- Bleeding from the mouth, nose, and eyes
- Vomiting
This stage of the disease is often life-threatening, but only 15% of flavivirus infections patients reach this stage.