(CNN) -- A Utah man with chronic health problems died Wednesday from complications associated with swine flu, a local health official said. If confirmed, it would be the ninth U.S. fatality associated with the flu outbreak.



Memorials appeared at the door of I.S. 238 in Queens, New York, this week after the death of an administrator.



The man, who was from around Salt Lake City, was between 18 and 25 years old and "had chronic medical conditions that may have contributed to severe complications from influenza," said Gary Edwards, executive director of the Salt Lake Valley Health Department.



Also on Wednesday, health and education officials in New York announced that 21 of the city's public schools had been closed after an increase of reports of students with flu-like symptoms. A school administrator in Queens died after being hospitalized with the H1N1 virus, commonly called swine flu.



Nineteen of the schools closed at the recommendation of the Health Department are public and two are private, the city's Education Department announced in a news release.



In addition, two private schools in Manhattan -- St. Davis Academy and Horace Mann -- have decided on their own to close after a number of students exhibited flu-like symptoms, according the schools' Web sites.



In the city's news release, city Health Commissioner Thomas R. Frieden repeated what has become a familiar refrain: "We continue to see a rising tide of flu in many parts of New York City. As the virus spreads, we will look to slow transmission within individual school communities by closing individual schools."



Late last week the city closed 11 schools in Queens and one in Brooklyn after confirming cases of the virus at Intermediate School 238 in Queens and unusually high levels of flu-like symptoms in the others.



Mitchell Wiener, an assistant principal at I.S. 238 who died Sunday after being hospitalized with the disease, had an underlying condition, according to Frieden.



The death in Utah was the first associated with the swine flu, or H1N1, virus.



The Centers for Disease Control and Prevention has linked eight U.S. deaths to the flu outbreak, but had not confirmed a link to H1N1 in the Utah death as of Wednesday evening.



The outbreak has sickened at least 10,176 people and caused at least 80 deaths -- mostly in Mexico, according to the World Health Organization. The actual number of people affected may be higher, as it takes time for national governments to confirm cases and report them to the global body.



In the United States, at least 5,710 cases of swine flu have been reported, according to recent figures from the CDC.



Utah officials echoed national agencies in saying that the swine flu has largely behaved like typical seasonal influenza, which usually is fatal only among the very old, the very young or people with other health problems.



In New York, 19 of the schools closed at the recommendation of the Health Department are public and two are private, it and the city's Education Department announced in a news release.



In addition, two private schools in Manhattan -- St. Davis Academy and Horace Mann -- have decided on their own to close after a number of students exhibited flu-like symptoms, according the schools' Web sites.



In the city's news release, city Health Commissioner Thomas R. Frieden repeated what has become a familiar refrain: "We continue to see a rising tide of flu in many parts of New York City. As the virus spreads, we will look to slow transmission within individual school communities by closing individual schools."



Late last week the city closed 11 schools in Queens and one in Brooklyn after confirming cases of the H1N1 virus, commonly called swine flu, at Intermediate School 238 in Queens and unusually high levels of flu-like symptoms in the others.



An assistant principal of Intermediate School 238 died Sunday after being hospitalized with H1N1. Frieden has said the administrator, Mitchell Wiener, had an underlying condition.



CNN's Deb Brunswick contributed to this report
According to WHO, how many people died worldwide? What caused the school closures? How many schools where closed in New York City? How many have died worldwide from the virus Which state reported its first death linked to the virus How many schools have closed since virus confirmed
at least 80 increase of reports of students with flu-like symptoms. 21 80 Utah 21
question: According to WHO, how many people died worldwide?, answer: at least 80 | question: What caused the school closures?, answer: increase of reports of students with flu-like symptoms. | question: How many schools where closed in New York City?, answer: 21 | question: How many have died worldwide from the virus, answer: 80 | question: Which state reported its first death linked to the virus, answer: Utah | question: How many schools have closed since virus confirmed, answer: 21