The Duchess is currently spending lockdown at her Wiltshire home, where it is believed a royal doctor gave her the COVID-19 jab. It is yet unknown whether Prince Charles, who battled the disease last year, has received his vaccine too.
Although it has not been confirmed, Camilla could have received the Oxford/AstraZeneca jab.
A friend of the Duchess told DailyMail.co.uk the royal seemed “very happy”.
The Prince of Wales previously expressed his intention to take the vaccine, but pointed out he was not expecting to jump the queue due to his royal status, and neither was his wife.
Both senior royals are part of the over-70s vaccination group.
The heir to the Throne told people giving jabs he was “way down the list” to be inoculated.
He made the remarks during a visit to the Gloucestershire Royal Hospital in Gloucester.
He said: “I think I’ll have to wait for the AstraZeneca one before it gets to my turn.
“I’m some way down the list and will have to wait.”