Prince William took part in a special surprise for a family whose child is vulnerable to the coronavirus. Kaydyn, 5, of Northamptonshire suffers from cystic fibrosis and needs to be severely protected so that he won't contract the deadly virus.

His mom, Leanne, could not help but be shocked when they both received a video call from the Duke of Cambridge, who has been staying in isolation at his home in Anmer Hall. Leanne told Prince William that since the lockdown orders, she and her son have only been out of the house to walk and enjoy some fresh air at least two times. 

Leanne revealed that Kaydyn has been frustrated about being indoors. However, he's also worried about stepping out of the house because of his condition. Cystic fibrosis is a hereditary disease that impacts the lungs. COVID-19, the disease from the coronavirus, also carries serious risks to the lungs. 

Prince William also talked to a 21-year-old patient with muscular atrophy who relies on a ventilator 24/7. Shelby Lynch said that she couldn't see her boyfriend during the lockdown because of her condition.

The Duke of Cambridge talked to the vulnerables to emphasize on the importance of staying at home in this public health crisis. He told these patients that there should be a lot of focus on shielding people with pre-existing and risky conditions. 

According to Hello, there are approximately 2.2 million vulnerable people shielding from the coronavirus in the U.K.  This special talk with Prince William will be aired on The One Show this Tuesday, June 16, at 7 p.m.

Meanwhile, Prince William and his wife, Kate Middleton, are still not expected to have an in-person royal engagement this week. His father, Prince Charles, however, will be back in Clarence House in London on Thursday, June 18, for his first public royal engagement with the president of France, Emmanuel Macron.

Prince Charles will be joined by his wife Camilla, the Duchess of Cornwall, for this special meet to celebrate the 80th Anniversary of the "Appel." However, palace sources said that this will not be a regular thing for the Prince of Wales and Camilla. As much as possible, the royal family will still have to observe social distancing and limit in-person engagements or travels to ensure their protection from the coronavirus pandemic.

In late March, Prince Charles developed mild symptoms of COVID-19 but he said he's pretty lucky he got away with eat so easily for someone his age. Those above 70 years old are also considered vulnerable against the disease.