"I wouldn't expect an outbreak of Kawasaki in children because Kawasaki itself is rare", Professor Angelo Ravelli, head of rheumatology at the Giannina Gaslini Institute, one of Italy's largest pediatric hospitals, pointed out. Sixty-five children had to be treated in intensive care and twenty-five in the critical care unit.
The pandemic has killed almost 314,000 people, with total infections over 4.68 million, while more than 1.72 million people have recovered from the disease, according to figures compiled by the US-based Johns Hopkins University.
She urged any parents anxious about symptoms in their children to get them checked by a doctor, but stressed that the condition itself appears to very rare.
The 3-year-old from New Jersey was taken to a hospital and treated in the ICU for four days with IV fluids and antibiotics. Majority had no major lung of breathing problems but some were put on ventilators to help heart and circulation problems.
Now, other medical experts in the country are finding a related and similar disease is emerging in children, despite the fact that most children with COVID-19 are generally asymptomatic or have mild to moderate symptoms. Symptoms include a rash, swollen glands in the neck and dry and cracked lips.
Portman noted that some patients coming into Seattle Children's Hospital for treatment of Kawasaki are showing antibodies for COVID - another sign that there might be a connection between the three illnesses.
"We don't have an answer yet on summer camps but we are looking at opening them", he said.
"What we wonder is whether this is an antibody mediated or delayed response to the virus that is happening several weeks after the infection", she said.
"This shouldn't stop parents letting their children exit lockdown", Prof Viner added.
The Chief Medical Officer is urging doctors to report any suspected cases of inflammatory disease in children, amid concerns of a potential link between it and COVID-19.
While the number of hospitalized COVID-19 patients continues to decline in the state, doctors are asking parents to be aware of symptoms that could put children at risk. "Also, it's a new disease", Ryan said at the briefing.
What is the situation elsewhere in the world?
According to physicians at MassGeneral Hospital for Children, two cases that met the state's criteria for the new condition were reported to public health officials, and three additional cases remain under investigation.
The CDC issued emergency guidance on Thursday. In England, six of the eight first cases observed were of black children, " afro-caribbean", according to these studies, this could suggest a genetic trail.
A nine-year-old boy in France has died from the mysterious Kawasaki-like disease, which some medics link to Covid-19.
All pupils will be required to wear face masks during recess in open areas, and those in grades 4-12 will also wear them in class.
Dr Annalisa Gervasoni, co-author of the study and a paediatric specialist in Bergamo, said: "In our experience, only a very small proportion of children infected with SARS-CoV-2 develop symptoms of Kawasaki disease".
Child health experts in the United Kingdom say it may not be something which just affects children.
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