For years doctors have worked on vaccines to prevent the spread of the flu virus.
Now researchers say parents may be able to protect their family without getting a shot.
The Mayo Clinic decided to study how humidity affects the flu virus.
Researchers wanted to see if higher humidity could actually stop the flu virus from spreading.
Organizers placed 30 humidity censors around a room and tracked and manipulated humidity levels throughout the building for two years.
They realized that people might have just as much effect on the flu as it has on humans.
Researcher Tyler Koep said, “We can see over time, as students go to lunch, the humidity will drop over that time just because people are no longer in the room breathing and releasing moisture into the atmosphere.”
Since the study began, the school’s principal said he has seen a drop in students out sick with the flu.
However, it’s still unclear whether the humidity is responsible for the change.