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Flu Tackles Super Bowl Sunday Fans

by Bidita Debnath on February 2, 2016 at 9:42 PM
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 Flu Tackles Super Bowl Sunday Fans

Be sure to wash your hands on Super Bowl Sunday before you give a friend a celebratory fist bump, if you're a fan of the Panthers or Broncos.

A Cornell University economist and his colleagues have found the geographical areas that have an NFL team advance to the Super Bowl had an 18 percent spike in flu-related deaths among people above the age of 65.


"The mechanism that's driving this is the increased socialization that happens as a result of the team being successful," says Nicholas Sanders, assistant professor of economics in the Department of Policy Analysis and Management at Cornell University.

"You have friends over for a Super Bowl party. You all go out to a bar to watch the game. A bunch of people are cramped in a small space, and they're all touching the same napkins and grabbing the same chips. If your team wins, you're all out in the street celebrating. It's that kind of disease transmission that we think might be a driving factor," he said.

The results were most pronounced in years when the dominant influenza strain is more virulent, or when the Super Bowl occurs closer to the peak of influenza season, he added.

The Super Bowl offered a perfect natural experiment to test the researchers' central question: how does a change in people's daily interactions - such as increased travel and social gatherings - affect the way a disease spreads?

The researchers analyzed county-level data from 1974 to 2009, comparing the rates of influenza-related death in areas that had an NFL team in the Super Bowl to the rates in places that also had football teams but did not reach the big game that year. The researchers focused on mortality for those over the age of 65, historically the most vulnerable population.

Although older adults may not change their habits much if their local team makes it to the Super Bowl, their chances of coming into contact with someone who has the flu increase as the infection rate climbs in the overall population, Sanders said.

"It needn't be a direct leap, where an older person is at a bar watching the team. It could be that individual's relative is at a bar and then he visits his parents. Or a worker at a retirement home goes out to get a drink and celebrate her team's win, and then returns to work the next day. Those are all possible disease transmissions," Sanders said.

But the researchers found no change in influenza mortality in cities that hosted the Super Bowl. That could be for several reasons, Sanders said, including because the influx of travelers may prompt locals to avoid going out on the town. Another factor could be the host city's location; the Super Bowl is frequently held in southern cities, where flu transmission rates are generally lower.

Sanders and his colleagues point out that flu prevention techniques apply whether it's Super Bowl Sunday or not: wash your hands, don't share food or drinks. If you are sick, avoid social gatherings.

"Simply being aware of the situation can make people take common-sense precautions, and say, 'Well, I'm not going to shove my hand in that bowl of nuts over there.' I think that's just good advice in general," Sanders said.

The study, "Success Is Something to Sneeze At: Influenza Mortality in Cities that Participate in the Super Bowl," appears in the winter 2016 issue of American Journal of Health Economics. Sanders' co-authors are Charles Stoecker and Alan Barreca, both economists at Tulane University.

Source: Eurekalert

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