TARANSBURG, N.Y. — It was a beautiful day in March.

A day in which the skies were blue and the clouds were thin.

It had been a warm, sunny day for the residents of a suburban New York city when they got a text message: “Happening at a house.”

That was a house that the authorities believed was the site of a deadly outbreak of coronaviruses in the United States, but it turned out to be a house in a different county.

“There was a lot of people that were out there,” said Dr. Michael C. Miller, director of the Tarnham Institute for the Study of Emerging and Newly Emerging Infectious Diseases at the University of Pennsylvania.

Miller, who has studied the outbreak, was among the many medical personnel who arrived at the Tarrytown home and went inside, testing all of the residents and their surfaces.

There was no sign of a flu-like illness, Miller said.

But what Miller saw was what he has come to expect in a pandemic: sick people and dying people.

The outbreak of the coronovirus is now spread by airborne particles from aerosols that are released by human activity.

And Miller said that was the case here in Tarry Town.

The house was the only one in the city where the virus had been found, he said.

There were about 10,000 people living in the Taremburg suburb, he added.

One of them, a 71-year-old man, was in the hospital with a respiratory infection and was expected to survive, Miller told reporters.

He had been exposed to the virus.

About 15 days after the initial coronaviral scare, there were still no confirmed cases of the virus, Miller added.

The number of confirmed cases was not immediately available.

Miller said it could be as high as 10,400.

But the number of deaths is expected to increase as people recover and more cases are reported, Miller reported.

People are still being tested for the coronAV virus, and Miller said he expects that number to grow as more people get tested.

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