Jennifer Ackerman New York Times

In early fall, a few weeks after the start of school, cold viruses wing their way from one young nose to another and thence to families and the workplace, infecting people at three to four times the rate at other times of year. And so the cold season begins and, with it, the relentless sneezing, coughing and sniffling that continue well into winter...

In early fall, a few weeks after the start of school, cold viruses wing their way from one young nose to another and thence to families and the workplace, infecting people at three to four times the rate at other times of year. And so the cold season begins and, with it, the relentless sneezing, coughing and sniffling that continue well into winter...