Contraindication of live vaccines in immunocompromised patients: an estimate of the number of affected people in the USA and the UK

- Live attenuated vaccines are usually contraindicated for individuals with immunocompromising (IC) conditions.
- An estimate of the size of the IC population is vital to make vaccine decisions.
- Key IC conditions were obtained from vaccination guidelines and recommendations.
- Approximately 3% of the total population of adults in the USA and UK had an IC condition.