New York's Mayor Bill de Blasio on Sunday voiced "tremendous concern" over an uptick in cases of a paediatric syndrome that scientists suspect could be linked to Covid-19.
The mayor said there have been 38 cases of paediatric multi-system inflammatory syndrome detected in New York City, with an additional nine suspected cases awaiting confirmation.
There have been three deaths statewide linked to the syndrome, Governor Andrew Cuomo had said over the weekend, with one in the city.
Symptoms of the syndrome include persistent fever, rash, abdominal pain and vomiting. "What it does is, basically, in a child's body triggers an intensive, almost overwhelming immune system response.