A newborn baby nearly died after contracting coronavirus - which hid the fact he had a serious heart defect.

Tiny Thomas Lovell was put on a ventilator when he was just three weeks old, before doctors realised he needed lifesaving heart surgery.

His dad had to watch the terrifying procedure on FaceTime because he was not allowed into the hospital because of coronavirus restrictions, The Times reports.

The virus symptoms had prevented medics realising how serious his condition was.

He was taken to hospital because his parents Sadie and Steven were worried he wasn't putting on weight like he should.

Doctors discovered he had fluid on his lungs which was making it hard for him to breathe, and a test showed he had Covid-19.

Sadie and Steven Lovell with their now fully recovered son Thomas

His condition was so bad that he was put on a ventilator at St Mary's Hospital in Paddington, West London.

But he continued to get worse, and was moved to Great Ormond Street Hospital - where surgeons found out he had the rare condition total anomalous pulmonary venous return (TAPVR).

It means all four pulmonary veins do not connect normally to the left atrium, and is deadly without surgery.

Medics had to manually squeeze a bag to revive the infant's lungs during the three hour procedure.

The lifesaving operation was carried out at Great Ormond Street Hospital

Sadie, 35, who also tested positive for coronavirus and had to self-isolate while her son was fighting for his life, said she was "in denial", stating: "I just thought it was Covid and no babies had died of it."  

She's now warned parents to be wary that the virus can hide other conditions.

Sadie said: "It’s scary because other people could be going through the same thing with their children, where Covid-19 symptoms mask more serious problems."

Thankfully Thomas is now making a full recovery and has put on weight.

"He’ll be a chunk before we know it," his mum said.

Data released yesterday by the Office for National Statistics revealed that in the UK, two infants under the age of one have died after contracting coronavirus.

The UK's official death toll stands at 39,369, but ONS data suggests the true figure has now crossed 50,000.