YELLOW FEVER

• Yellow fever is an acute viral haemorrhagic disease transmitted by mosquitoes, belonging to the Aedes and Haemogogus species.

• 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.