Vomiting or diarrhoea
Babies who have had the rotavirus vaccine may develop vomiting and diarrhoea up to seven days after their vaccination.
What to do at home
Most babies recover within a few days. In the meantime, keep up breastfeeds or bottle feeds as normal, and offer additional clear fluids such as water. It is important for babies to keep on drinking fluids to make up for the fluids they lose through vomiting and diarrhoea. Dehydration can be dangerous for small babies.
See a doctor if your baby is sick with vomiting and diarrhoea and you think they are not drinking enough, or if the vomiting and diarrhoea lasts for more than a few days without any sign of getting better.
Around 59 babies in every one million who get the rotavirus vaccine experience a blockage of the intestine called an ‘intussusception’2. The blockage gives babies strong bouts of pain in their abdomen which can make them look pale, weak and very sick. They may vomit. Babies who look pale and distressed and are drawing their legs up could have intussusception and should be taken to hospital quickly so they can get the help they need. Babies who are treated for intussusception usually don’t have any long-term health problems.