McFly star Harry Judd's son Kit was whisked to A&E with a vaccine reaction as his wife Izzy praised the jab programme. The mum thanked NHS and the kind doctor who looked after her son in A&E on Sunday on Instagram.
Izzy heaped on the praise for vaccines and she informed her fans her son Kit had always been "sensitive" to getting his vaccinations.
Some children have side effects from the 4-in-1 vaccination booster which don't last long and usually are mild, according to the NHS.
The pre-school booster vaccine boosts protection for children against four diseases: diphtheria, tetanus, whooping cough and polio.
Read more on mirror.co.uk