Fall and winter are known as "respiratory virus season". While viruses can spread year-round, we generally see viral activity pick up in October, and it peaks between December and February due to a variety of reasons -
More time indoors: In cold weather, people spend more time indoors in closer contact with others. This increases the chances of viral transmission in enclosed spaces with less ventilation.
Reduced immune defense: Cold air can impair the immune response in the nose, which is the body's first line of defense against airborne viruses. Research shows that a drop in nasal temperature can significantly reduce the ability of immune cells to fight off viruses.
Dry air: Lower humidity in the winter allows viral droplets from coughs and sneezes to remain in the air longer and travel farther.
Lower vitamin D levels: Reduced sunlight exposure in winter can lead to lower levels of vitamin D, which is important for a healthy immune system.
Viruses such as Influenza, COVID, RSV, and Hand-Foot-and-Mouth Disease are common viruses that are prevalent this time of year. While the seasonal spread is largely due to the factors above, hand washing is a key preventive measure at all times, especially during respiratory virus season. Good hand hygiene helps prevent viruses from spreading when you touch contaminated surfaces and then touch your eyes, nose, or mouth.
The School District of Sheboygan Falls follows guidelines that are recommended by the American Academy of Pediatrics and the Centers for Disease Control and Prevention when recommending when it is safe for students to remain in school. We also consult with our Medical Director and the Public Health Department, to stay informed about current outbreaks and reporting protocols.
We can all help reduce the spread of viral illnesses by remembering to wash hands frequently with soap and water for at least 20 seconds, covering coughs and sneezes, avoid touching eyes, nose, and mouth, and by staying home if a fever is present (100.4 F or higher).
Wishing everyone a healthy fall and winter season!
Deanna Timler, RN, BSN
