Scarlet Fever and invasive Group A strep: Symptoms and what to do

Group A streptococcus (GAS) is a common bacterium. Lots of us carry it in our throats and on our skin and it doesn’t always result in illness. However, GAS does cause several infections, some mild and some more serious.

Scarlet fever is usually a mild illness, but it is highly infectious.

Scarlet fever is caused by bacteria called group A streptococci. These bacteria also cause other respiratory and skin infections such as Strep throat and impetigo.

Look out for symptoms in your child, which include:

  • Sore throat
  • Headache
  • Fever
  • A fine, pinkish, or red body rash with a sandpapery feel.
  • On darker skin the rash can be more difficult to detect visually but will have a sandpapery feel.

Contact NHS 111 or your GP if you suspect your child has scarlet fever, because early treatment with antibiotics is important to reduce the risk of complications, such as pneumonia or a bloodstream infection.

If your child has scarlet fever, keep them at home until at least 24 hours after the start of antibiotic treatment to avoid spreading the infection to others

As a parent, if you feel that your child seems seriously unwell, you should trust your own judgement. Contact NHS 111 or your GP if:

  • your child is getting worse
  • your child is feeding or eating much less than normal
  • your child has had a dry nappy for 12 hours or more or shows other signs of dehydration
  • your baby is under 3 months and has a temperature of 38°C, or is older than 3 months and has a temperature of 39°C or higher
  • your baby feels hotter than usual when you touch their back or chest, or feels sweaty
  • your child is very tired or irritable

Call 999 or go to A&E if:

  • your child is having difficulty breathing – you may notice grunting noises or their tummy sucking under their ribs
  • there are pauses when your child breathes
  • your child’s skin, tongue or lips are blue
  • your child is floppy and will not wake up or stay awake

Good hand and respiratory hygiene are important for stopping the spread of many bugs. By teaching your child how to wash their hands properly with soap for 20 seconds, using a tissue to catch coughs and sneezes, and keeping away from others when feeling unwell, they will be able to reduce the risk of picking up or spreading infections.