Skip to content

Yellow Fever

Yellow fever is caused by a virus that is spread through mosquito bites. The “yellow” in the name refers to the term “jaundice” which makes some peoples skin or eyes become yellow. This disease is mainly found in Africa, Central and South America but sometimes travelers who visit these countries can get yellow fever.

Overview

How can I get sick?

  • Yellow fever virus is spread to humans by mosquito bites. These mosquitos live in different areas- some live around homes and others live in the jungle. Yellow fever infects both humans and monkeys in tropical rainforests.   

Symptoms in humans:  

Most people do not become sick, but some people experience the following: 

  • Fever (when your body gets a little hotter than normal) 
  • Muscle pain 
  • Back pain 
  • Headache  
  • Not feeling hungry 
  • Feeling like you need to throw up 
  • Throwing up 

Some people can get very sick and experience the following: 

  • High fever (when your body gets much hotter than normal) 
  • Jaundice (skin and eyes turn yellow) 
  • Dark urine (your pee is dark in color) 
  • Stomach pain 
  • Vomiting  
  • Bleeding from mouth, nose, eyes or stomach 

What can I do to stay healthy? 

Protect yourself and your family from mosquito bites. 

  • Use insect repellents* while hiking, camping, hunting, or being outside. Ask an adult to help you with insect repellent* 

  • Wear long pants, long sleeves, and long socks when outside.   
  • Treat your clothes, gear (boots, tents, backpacks or camping gear), or any outdoor equipment with insect repellent* 
  • Use screens on windows and doors to keep mosquitos outside.  
  • Remove anything that will bring mosquitoes into your home. For example, emptying standing water from pots, buckets, barrels, and other containers.  

What to do when traveling overseas 

  • Use insect repellents* while hiking, camping, hunting, or being outside. Ask an adult to help you with insect repellent*.  
  • Wear long pants, long sleeves, and long socks when outside.   
  • Treat your clothes, gear (boots, tents, backpacks or camping gear), or any outdoor equipment with insect repellent*.  
  • Choose a hotel or place to stay that has air conditioning or windows and doors with screens to keep mosquitos outside.  
  • Use mosquito nets when sleeping outside or if you are staying in a room with no screens on windows or doors.  

There is a vaccine available for yellow fever, contact your doctor or healthcare provider to find out more information and how you can get it.  

*Definitions: 

  • Insect Repellent: Product applied to skin, clothing or surfaces to keep insects away.

Species Affected

Learn About Other Diseases

Click below to learn more about the many different diseases that can spread between animals and humans.

Diseases