<p>LONDON — The Duchess of Cambridge has received her first dose of a COVID-19 vaccine as Britain extends its inoculation program to younger people.</p>
<p>Kate, the 39-year-old wife of Prince William, received her shot at London’s Science Museum, a mass vaccination center near the couple’s home at Kensington Palace, according to a photo posted on their Twitter feed. She got vaccinated a few weeks after her husband.</p>
<p>“I’m hugely grateful to everyone who is playing a part in the rollout — thank you for everything you are doing,” the duchess said in a tweet posted Saturday.</p>
<p>Britain this week extended its COVID-19 vaccination program to everyone over the age of 30. The program has been gradually expanded to progressively younger age groups since it began in early December, and more than 70% of adults have already received at least one dose.</p>
<p>Other members of the royal family, including Queen Elizabeth II and Prince Charles, have publicized their vaccine appointments to encourage people to get shots. </p>
