Yellow fever, a mosquito-borne viral illness, can manifest in a range of symptoms, from mild flu-like signs to severe, life-threatening complications. Early recognition of these symptoms is crucial for prompt diagnosis and treatment. This guide outlines common indicators to help you understand and identify potential yellow fever infections.
Characterized by a rapid increase in body temperature, often reaching high levels in the initial phase of the illness. The fever can be intermittent or persistent.
A debilitating headache that can be located in the forehead, temples, or the back of the head, often accompanied by sensitivity to light (photophobia).
Intense muscle pain, particularly in the back and limbs, contributing to a general feeling of weakness and discomfort. Myalgia can be severe and debilitating.
Frequent episodes of nausea, often progressing to vomiting. Vomiting may initially consist of food and fluids, but can become bilious or bloody in severe cases.
A significant decrease in appetite, leading to reduced food intake and potential weight loss during the acute phase of the illness.
A sensation of lightheadedness or imbalance, which can lead to falls and injuries. Dizziness may be exacerbated by changes in position or movement.
Yellowing of the skin and the whites of the eyes (sclerae), indicating liver damage. Jaundice typically appears a few days after the onset of other symptoms.
Discomfort or pain in the abdomen, which can range from mild to severe. Abdominal pain may be associated with liver enlargement and inflammation.
Increased susceptibility to bleeding, including nosebleeds (epistaxis), gum bleeding, and easy bruising. In severe cases, bleeding can occur from the gastrointestinal tract.
Vomiting of blood, indicating severe damage to the lining of the stomach or esophagus. Bloody vomit is a serious sign that requires immediate medical attention.
Dark, sticky stools that contain digested blood, indicating bleeding in the upper gastrointestinal tract. Black, tarry stools are a medical emergency.
A reduction in urine output, indicating kidney dysfunction. Decreased urination can lead to fluid retention and electrolyte imbalances.
Altered mental status, including confusion, disorientation, and difficulty concentrating. Confusion can be a sign of severe brain involvement.
Uncontrolled electrical activity in the brain, leading to convulsions and loss of consciousness. Seizures are a serious neurological complication of yellow fever.
Severe impairment of liver function, leading to jaundice, coagulopathy, and encephalopathy. Liver failure is a life-threatening complication of yellow fever.
Impairment of kidney function, leading to fluid retention, electrolyte imbalances, and accumulation of waste products in the blood. Kidney failure can be fatal.
A life-threatening condition characterized by inadequate blood flow to the body's organs. Shock can result in organ damage and death.
A state of prolonged unconsciousness, indicating severe brain damage. Coma is a grave sign of yellow fever.
