Clare Jelley called NHS 111 when baby Jaxx showed worrying symptoms including “his chest concaving with every breath.”

After being taken by ambulance to St Helier hospital, the four-month-old was diagnosed with RSV infection and bronchiolitis.

With Jaxx hospitalised on December the 10th last year, 40-year-old Clare feared they would be spending Christmas in hospital.

But after 5 days, he was allowed home and the one-year-old is now “doing brilliantly”.

RSV infections are very common, but some babies and adults have a higher risk of getting seriously ill, such as babies under 6 months old.

Molly Simpson, Head of Charity and Fundraising at Epsom and St Helier Hospitals Charity, said: “Having your child admitted to hospital – especially at Christmas – can be a terrifying time for any parent and I’m very proud that we’re able to help their darkest days feel a bit easier.

“Our Christmas Appeal needs you – your generous donations can bring comfort to patients and their families. You can also show your appreciation for our wonderful NHS by funding a meal for dedicated staff working on Christmas Day.”

RSV infections are very common, but some babies and adults have a higher risk of getting seriously ill, such as babies under six months old.

“RSV is an absolutely awful illness, especially for young babies,” said Clare. “Thankfully, Jaxx received the right treatment in time, and he recovered almost completely by the end of the week, though it took a good seven days. I’d definitely like more mums to be aware of how serious RSV can be.”