ALBANY, N.Y.  — Two more young people died from a mysterious syndrome possibly linked to the coronavirus. New York's stay-at-home order was extended to June 7, though parts of the state could relax restrictions sooner if they show progress in taming and tracing the virus. 

The latest coronavirus developments in New York.

MYSTERIOUS SYNDROME

Two young children and a teenager have now died in New York state from a possible complication from the coronavirus involving swollen blood vessels and heart problems, Gov. Andrew Cuomo said Saturday.

At least 73 children in New York have been diagnosed with symptoms similar to Kawasaki disease — a rare inflammatory condition in children — and toxic shock syndrome. Most of them are toddlers and elementary-age children.

Cuomo announced two more deaths a day after discussing the death of a 5-year-old boy Thursday at a New York City hospital. A 7-year old in Westchester County and a teenager in Suffolk County on Long Island also died. There is no proof that the virus causes the mysterious syndrome.

https://www.youtube.com/watch?v=x4lmPMG4wtg

Cuomo said children had tested positive for COVID-19 or the antibodies but did not show the common symptoms of the virus when they were hospitalized.

"This is the last thing that we need at this time, with all that is going on, with all the anxiety we have, now for parents to have to worry about whether or not their youngster was infected," Cuomo said at his daily briefing.

New York is helping develop national criteria for identifying and responding to the syndrome at the request of the Centers for Disease Control, Cuomo said.

Children elsewhere in the U.S. have also been hospitalized with the condition, which was also seen in Europe.

Doctors still believe that most children with COVID-19 develop only mild illness. 

At least 3,000 U.S. children are diagnosed with Kawasaki disease each year. It is most common in children younger than 6 and in boys.

Symptoms include prolonged fever, severe abdominal pain and trouble breathing.

STAY-AT-HOME

Cuomo extended New York's stay-at-home restrictions to June 7, though regions of the state will be able to phase in re-openings sooner if they meet a series of benchmarks.

The lockdown enacted in March had already been extended through May 15. A further extension was expected given the New York City region's status as a pandemic hot spot. 

Cuomo's new executive order fits in with his previously announced plan to allow regions of the state to begin restarting economic activity after May 15 if they demonstrate progress in taming and tracking the virus, according to administration officials. Some upstate areas hope to begin reopening later this month, though none of the state's 10 regions had met all seven required benchmarks earlier this week.

Regions wishing to phase in economic activity must show that COVID-19-related deaths and hospitalizations are trending down and that there are enough hospital beds to meet a surge. Counties will have to increase testing and tracing and businesses will need to adapt to protect workers.

Businesses will reopen in four phases, starting with construction, manufacturing and retail with curb-side pickup.

THE NUMBERS

New York reported 226 new deaths, up by 20 from the previous day but in line with daily tolls from the rest of the week.

More than 21,200 people in the state have died from coronavirus, though the total doesn't include more than 5,300 deaths in New York City that were attributed to the virus on death certificates but weren't confirmed by a lab test.

Pressures on hospitals continue to ease. Total hospitalizations dipped to 7,776, well under half the number at the peak of the outbreak. New COVID-19 admissions are averaging 572 a day, compared to more than 3,000 a day in early April. 

SHELTER BUSES

New York City transit officials said they're providing buses for homeless people to shelter from unseasonably frigid weather this weekend during newly instituted overnight subway closures. 

The subway system has been shutting down from 1 to 5 a.m. since Wednesday as part of an outbreak-related plan for daily train disinfecting. City outreach workers have been persuading homeless people to leave the system for shelters during the shutdowns.

With temperatures around the freezing mark and a traces of snow reported in Manhattan's Central Park, transit officials said they also would provide a limited number of buses at end-of-line stations Saturday and Sunday.

The buses are not for transportation, "but may serve as a place for individuals to escape the elements in the short term," according to a prepared statement from New York City Transit President Sarah Feinberg and Transport Workers Union Local 100 President Tony Utano.

"We are providing these buses only during this cold snap and expect the city to continue to step up and take responsibility for providing safe shelter for those individuals experiencing homelessness," according to the statement.

The Metropolitan Transportation Authority did not immediately respond to an email Saturday morning asking how many buses were provided and how many people were taking shelter in them.