• The "yellow" in the name refers to the jaundice that affects some patients.
• Symptoms of yellow fever include fever, headache, jaundice, muscle pain, nausea, vomiting and fatigue.
• Virus is endemic in tropical areas of Africa and Central and South America.
o Endemic disease is one where infection is constantly maintained in a geographic area without any external inputs.
• Vaccine for this disease is available and a single dose of yellow fever vaccine is sufficient to grant sustained immunity and life-long protection.
• WHO launched Eliminate Yellow Fever Epidemics strategy in 2017. By 2026, it is expected that more than 1 billion people will be protected against the disease.
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