A baby is one of three people at a Norfolk hospital who has tested positive for coronavirus, the NHS Trust has confirmed.
All three are already being treated in isolation for Covid-19 at the James Paget University Hospital in Gorleston.
A hospital spokesman said: "An extensive 'contact tracing' exercise is now under way by Public Health England to trace anyone who might have had close [face-to-face] contact.
"Close contacts will be given health advice about symptoms and what to do if they become unwell in the 14 days after they had contact with the confirmed case.”
The baby’s diagnosis comes as nine-month-old baby Cassian Coates tested positive for coronavirus on Monday.
The boy’s mother, Myroslava, who is isolating at home in Manchester with husband Callum, told Sky News: “I did panic but I cannot express how fantastic and reassuring our GP was. They said that with children this age they are diagnosing by symptoms.
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“We were told to go home to self-isolate for two weeks and keep giving him Calpol as if it was a cold.”
Craig Ruston, 45, became Britain's youngest victim of coronavirus after he died on Monday morning.
The family of the father, who was diagnosed with motor neurone disease (MND) in June 2018, said he was "not ready to go”.
A post on Ruston’s Me And My MND Facebook page on Tuesday, signed by his wife Sally and their "amazing girls", said: "My Amazing Craig passed away yesterday morning at 6.20am.
"We are truly heartbroken. His fight with MND was not ready to be over.
"At diagnosis in June 2018 he was given roughly two years to live. He was pushing that back.
"Craig was not ready to go.”
The government has vowed to do "whatever it takes" to buoy the economy as the number of people thought to have Covid-19 in the UK rose to 55,000 and the official death toll climbed to 71 on Tuesday.