Which of the following is not a vector-born disease?

Yellow fever

Dengue fever

Malaria

Viral fever

Yellow fever → Spread by Aedes mosquitoes.

Dengue fever → Spread by Aedes aegypti mosquitoes.

Malaria → Spread by Anopheles mosquitoes.

Viral fever → Caused by different viruses but is not vector-borne; it spreads through direct contact, droplets, or contaminated surfaces