# Yellow Fever

> A mosquito-borne viral illness that can cause severe liver involvement, but is preventable with vaccination.

**Canonical URL:** https://www.mfamasia.com/condition/yellow-fever

**Last updated:** 2026-08-09

Yellow fever is a viral infection transmitted by mosquitoes, found in parts of Africa and South America. Most infections are mild, but a proportion progress to a severe form affecting the liver and other organs, which can be fatal. It is preventable through a highly effective vaccine.