What Is Rheumatic Fever?

What Is Rheumatic Fever?

This information is for parents and whānau. It's designed to help you and your whānau navigate the journey ahead after your child has been diagnosed with rheumatic fever or rheumatic heart disease. 

Images from the rheumatic fever and rheumatic heart disease booklet produced by the Rheumatic Fever Project Team, Te Whatu Ora - Counties Manukau in conjunction with RHD Queensland Australia.

Rheumatic fever booklet cover and image of people

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What is rheumatic fever?

Rheumatic fever is a sickness that happens in some people after they have a Streptococcal (strep) germ. This germ causes sore throats and skin sores. Sometimes, after causing a sore throat, the strep germ can cause the body's germ defence system (immune system) to start attacking your child's joints, heart, brain and skin - this is called rheumatic fever.

Healthcare professionals often call this ARF, which stands for acute rheumatic fever. When someone has ARF, this can cause fevers, pain, and swelling in the joints. Sometimes, it can hurt so much that it is difficult to move or walk. 

Your child's team of healthcare professionals will have done a number of tests to diagnose rheumatic fever. These include:

  • blood tests
  • swabbing your child's throat to see if they still have the strep germ
  • a special heart scan called an echocardiogram to see if your child's heart has been damaged by ARF

Comic about someone with a sore throat being advised to go to the doctors to check for strep throat

Comic about someone with a sore throat getting checked for rheumatic fever

Comic about someone with a sore throat getting checked for rheumatic fever

Other parts of the journey

The rheumatic fever and rheumatic heart disease journey introduction

Taking care of my child's health after a diagnosis of rheumatic fever

What is rheumatic fever? (You are here)

A young person's rheumatic fever or rheumatic heart disease journey in pictures

What is rheumatic heart disease?

How will my child's rheumatic fever be managed?

What other ways can I look after my child's health after rheumatic fever?

When can my child return to doing the things they enjoy after rheumatic fever?

Will my child need regular medical check-ups after rheumatic fever?

Looking after my child's mouth and gums after rheumatic fever

Will rheumatic fever affect my child's ability to have children in the future?

Acknowledgements

This information is adapted from the rheumatic fever and rheumatic heart disease booklet produced by the Rheumatic Fever Project Team, Te Whatu Ora - Counties Manukau, 2022.

This page last reviewed 13 October 2023.

Call Healthline on 0800 611 116 any time of the day or night for free health advice when you need it