Illustration from The Lullaby Trust depicting hands being washed, and an X next to a pair of lips. T H A N K S - meaning, Think Hands And No KisseS. Remember to wash your hands before touching a baby, and only kiss a new baby if you're their parent or carer.

What is Infection Prevention Week? 

Each year, we discuss why infection prevention is so important in babies, and what signs and symptoms to look out for. We will also show how we can all work together to keep babies safe from infection. Keep your eyes peeled for Wythnos Atal Heintiau this year on 19-25 October. Ultimately, with your help, Infection Prevention Week can save lives.

Why is infection prevention in babies so important? 

Babies have immature immune systems. Even infections that are considered ‘mild’ in older children and adults can be life-threatening for babies. 

One of the reasons that babies are more vulnerable to infections is that they have simply not been exposed to some common viruses. As they grow and get bigger, their immune systems will have had a chance to develop and will be more able to cope when they are exposed to bacteria, viruses, and other germs. 

A health professional sitting on a chair, opposite a mum sitting on a chair with her baby on her lap, having a conversation.

The 2025 theme: Never a nuisance

The theme for Infection Prevention Week 2025 is ‘never a nuisance’. No parent should hesitate to speak up if they’re worried about their baby. But too often, families worry about being a bother. This Infection Prevention Week, we’re saying it loud and clear; you’re never a nuisance.

Speak up when something doesn’t feel right and trust your instincts, as no one knows your baby better than you do.  

We’re encouraging you to seek help if you’re worried.

  • As parents and carers, we can hesitate to ask for help, fearing we’re overreacting or taking up NHS time. But we know that parents’ gut instincts are strong, and reaching out early can make all the difference if your baby has an infection.
  • Health professionals want to hear from you, whether it’s your first concern or your fifth. You’re never a nuisance when it comes to your baby’s health.

How you can help 

  • Saving lives starts with having the knowledge. Read our infection and illness webpages to make yourself familiar with the THANKS guidance. 
  • Follow us on Instagram, Facebook, LinkedIn or TikTok and share our content far and wide. This way, we can reach as many people as possible with our life-saving advice, together. 
  • If you’re a professional, download and display our infection prevention resources in your workplace.  Spotting infection in babies poster, Baby Check app poster, THANKS poster. More resources here.
  • It can be as simple as being a good friend. If you know a parent or carer who is worried about their baby, encourage them to request another check and raise their concerns. 
  • Sign up to be a Lullaby GEM (Gives Every Month), to help us reach as many families as possible with our life-saving advice. You can be there for every family, for every baby, forever. 

Posters to download

Learn more

Graphic in a circle for infection prevention week. There are illustrated germs in the middle of the circle.

Wythnos Atal Heintiau

Each year we host an Infection Prevention Week during October to show how we can all work together to keep babies safe from infection. We want to empower parents and carers to trust their instincts!

A close up of a woman washing her hands. She has soap suds on her hands and black nail polish, and the tap is off.

Atal haint

Babies are more vulnerable to infections than older children, especially in their first few weeks. Here you will find the signs and symptoms to look out for that your baby might be unwell.

An illustration of a hand holding a phone with the Baby Check app open by The Lullaby Trust. It is on a page saying 'temperature', with an illustration of a baby and a thermometer.

Ap Gwirio Babanod

Our Baby Check app gives you peace of mind, in your pocket. If your baby is under six months of age, you can use the Baby Check app to find out if they need to see a health professional.

Baby Sam is being held by Matt's right arm. They are both looking out over a bridge at a beautiful, green view. Their backs are to the camera.

Straeon diogelwch babanod

The voices of the families we exist to support are at the heart of everything we do. Discover our baby safety, sudden infant death syndrome (SIDS) and infection prevention stories.