Respiratory infections are transferred more readily in the winter time for two reasons,” he said. “The first is we spend more time in enclosed spaces, close to each other, so that we have more prolonged face-to-face contact.”
The second reason has to do with humidity.
“When we transmit viruses from one person to another, we’re usually 3 feet [from] each other — the so called ‘breathing zone,'” Schaffner explained. “When we’re in a time of low humidity such as we have in the winter time, it appears that that little bit of moisture that surrounds the virus evaporates, so the virus remains in the air for a sufficiently prolonged time so that the person who is sufficiently close to me can breathe it in.”
You may have been told that you can catch a cold by getting caught in the rain and staying in wet clothes.
Experts say this is a myth.
“All our parents used to say that, perhaps to keep us indoors in bad weather,” Stephen Morse, PhD, a professor of epidemiology and an infectious disease expert at Columbia University in New York, told Healthline.