Professor David Salisbury, director of immunisation at the Department of Health, has said he would encourage all parents of young children to "accept" the rotavirus vaccine.
In a statement, he said: "Rotavirus spreads very easily and affects around 140,000 children every year, causing distress for them and their families.
"Many people think of diarrhoea as something that all children get and that you have to put up with. But there is a way to protect children from this. I'd encourage all parents of young children to accept this vaccine when the programme begins next year."
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His mother Princess Diana was killed in a car crash in Paris in 1997 when he was just 12 and his brother William was 15.
The 21-year-old, who was arrested on Sunday, also allegedly injured two other people in the attack in the German city of Reutlingen.
She was going to the aid of a family member who got out of the car in the middle of the park and was dragged away by a different tiger.