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RS virus jab offered to babies again

RIVM reports that the number of RS virus cases is low in early September.

Babies will again be offered immunisation against RS virus this autumn. According to RIVM, the jab reduces the chance of hospital admission due to the virus by around 80 per cent, while protection against serious illness remains the central aim.

RS virus occurs mainly in autumn and winter. In most children it causes a cold, but young babies can become more seriously ill. The virus can cause breathing difficulties and inflammation of the small airways, sometimes making hospital care necessary.

RIVM reports that babies who receive the jab are around 80 per cent less likely to be admitted to hospital because of RS virus. The immunisation is intended to prevent serious illness. This does not mean that a child can never become infected or develop symptoms.

Babies born between 1 April and 30 September will be offered the jab in September or October. Parents will receive information through their midwife, child health clinic or RIVM. The programme is being carried out within the existing public vaccination programme.

Current surveillance showed a low number of RS virus cases on 16 September. RIVM points out that the season has yet to begin and that most infections are seen during the colder months. A low level in September is therefore not a prediction for the rest of the winter.

In its review of the 2025–2026 season, RIVM writes that it is plausible that immunisation contributed to fewer detections among young children. The organisation is still investigating the precise effectiveness and impact on the total number of cases.

The figures are intended for public health and policy, not as personal medical advice. Parents with questions about the jab or about symptoms in their child can contact their midwife, child health clinic or GP. The severity of symptoms in an individual child cannot be inferred from national averages.

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