Rotavirus vaccine

Rotavirus vaccine is a vaccine given to babies to protect them from rotavirus infection, a common cause of severe diarrhoea and dehydration in young children.

• What rotavirus does: It infects the intestines and can cause frequent watery stools, vomiting, fever, and stomach pain. The biggest danger is dehydration (loss of too much water and salts from the body).
• How the vaccine helps: It “trains” the immune system to recognise rotavirus so the body can fight it quickly later, reducing the chance of severe illness and hospitalisation.
• Who needs it most: Rotavirus spreads easily among infants and toddlers (for example, through unwashed hands or contaminated surfaces), so protection early in life is especially important.
• How it is usually given: In many immunisation programmes, it is given as oral drops (by mouth) in early infancy, in more than one dose.
• Why it matters for public health: When many children are vaccinated, fewer children get seriously sick, which helps lower child deaths and reduces the spread of infection in the community.
• A helpful nuance: The vaccine greatly lowers the risk of severe diarrhoea due to rotavirus, but children can still get mild diarrhoea from other germs—safe water, hygiene, and proper nutrition still matter.