"We believe that this sudden drop in temperature contributes to 'kickstart' the epidemic. Once the epidemic has started, it continues even if temperatures rise. Once people are sick and contagious, many more may become infected,” said Nicklas Sundell, a researcher at Sweden’s Sahlgrenska Academy.
The study doesn’t advance any new ideas as to how cold weather influences flu outbreaks. But the research does reinforce one popular theory regarding aerosol particles, which often harbor viruses and proliferate in cold and dry weather. It’s these aerosol particles that are the real suckers.
So make sure you bundle up and take the necessary precautions this winter season, like getting a flu shot. Campbell's Soup is also pretty good.