Welcome to #TeamGBSS!

Thank you for taking on the 2027 TCS London Marathon.

Every mile you run and every pound you raise will help protect babies from group B Strep infection — the leading cause of severe infection in newborns in the UK.

Most group B Strep infections are preventable with better awareness and access to testing. That’s why we won’t stop until every pregnant woman and person has the information, testing and care they need to protect their baby.

By joining #TeamGBSS, you’re helping to stop group B Strep infection in babies, raise awareness and and help change the future for many families.

You can find out more about our work and what we do here