Finding Clues to Flu's Spread on the Way to Work

There is a tendency for the influenza season to start in California more often than any other state (with an average lead of one week for California)," the researchers wrote. The key, the study said, may lie with adults and, more specifically, their workplace commutes. When the researchers looked at information from the Census Bureau and the federal Department of Transportation, they found that the regional spread of the flu correlated closely with commuting patterns. Recent research has suggested that children, especially 3- and 4-year-olds, are the driving force behind epidemics.


Patterns: Finding Clues to Flu's Spread on the Way to Work - New York Times

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