Harry and Meghan have released a new rare picture of son Archie holding balloons to celebrate his second birthday.
The Duke of Sussex, 36, and Duchess of Sussex, 39, have asked royal well wishers to mark their son's milestone birthday by donating to a vaccine equity campaign.
On their Archewell Foundation site, the couple, who are expecting their second child, wrote: "We cannot think of a more resonant way to honor our son's birthday.
If we all show up, with compassion for those we both know and don't know, we can have a profound impact. Even a small contribution can have a ripple effect."
© InstagramHarry and Meghan have released a new rare picture of son Archie holding balloons to celebrate his second birthday
The couple asked people to consider donating $5 (£3.60) to cover the cost of a vaccine for a person who needs it.
They wrote: "We have been deeply touched over the past two years to feel the warmth and support for our family in honor of Archie's birthday. Many of you donate to charities on his behalf, and mark the occasion by giving back or doing an act of service - all through the goodness of your hearts. You raise funds for those who need it most, and continue to do so organically and selflessly. We remain incredibly grateful.
"This year, our world continues to be on the path to recovery from COVID-19. Yet too many families are still struggling with the impact of this pandemic. While some places are on the verge of healing, in so many parts of the world, communities continue to suffer.
"As of today, around 80 percent of the nearly one billion COVID-19 vaccine shots that have been given were administered in wealthier countries. While we may feel that normalcy is around the corner, we remind ourselves that in much of the world, and especially in developing countries, vaccine distribution has effectively yet to start."